Health Topics A-Z Sitemap - Page 17

Lentigo, solar on the back

Lentigo, solar with erythema on the arm

Lepromin skin test

Lepromin skin test
The lepromin skin test is used to determine what type of leprosy a person has. It involves the injection of a standardized extract of inactivated leprosy-causing bacteria under the skin.

Lepromin skin test
The lepromin skin test is used to determine what type of leprosy a person has. It involves the injection of a standardized extract of inactivated leprosy-causing bacteria under the skin.

Leprosy
Leprosy is an infectious disease that has been known since biblical times. It is characterized by disfiguring skin lesions, nerve damage, and progressive debilitation.

Leprosy
Leprosy is an infectious disease that has been known since biblical times. It is characterized by disfiguring skin lesions, nerve damage, and progressive debilitation.

Leprosy

Leprosy
Leprosy is an infectious disease that has been known since biblical times. It is characterized by disfiguring skin lesions, nerve damage, and progressive debilitation.

Leptospirosis
Leptospirosis is a rare, severe, and contagious bacterial infection caused by several species of the genus , a spiral-shaped microorganism (spirochete).

Leptospirosis
Leptospirosis is a rare, severe, and contagious bacterial infection caused by several species of the genus , a spiral-shaped microorganism (spirochete).

Leptospirosis

Leptospirosis
Leptospirosis is a rare, severe, and contagious bacterial infection caused by several species of the genus , a spiral-shaped microorganism (spirochete).

Lesch-Nyhan syndrome
Lesch-Nyhan syndrome is an inheritable disorder that affects purine . It affects how the body handles the building and breakdown of purines -- one of the chemical units that make up RNA and DNA molecules.

Lesch-Nyhan syndrome
Lesch-Nyhan syndrome is an inheritable disorder that affects purine . It affects how the body handles the building and breakdown of purines -- one of the chemical units that make up RNA and DNA molecules.

Lesch-Nyhan syndrome
Lesch-Nyhan syndrome is an inheritable disorder that affects purine . It affects how the body handles the building and breakdown of purines -- one of the chemical units that make up RNA and DNA molecules.

Lesch-Nyhan syndrome

Lethal midline granuloma
A severe form of associated with various infections and leading to death.

Lethal midline granuloma
A severe form of associated with various infections and leading to death.

Lethal midline granuloma
A severe form of associated with various infections and leading to death.

Lethal midline granuloma
A severe form of associated with various infections and leading to death.

Leucine aminopeptidase - blood

Leucine aminopeptidase - serum
This is a blood test that measures the amount of the leucine aminopeptidase (LAP).

Leucine aminopeptidase - serum
This is a blood test that measures the amount of the leucine aminopeptidase (LAP).

Leucine aminopeptidase - urine
This is a test that measures the amount of leucine aminopeptidase (LAP) in urine.

Leucine aminopeptidase - urine
This is a test that measures the amount of leucine aminopeptidase (LAP) in urine.

Leucine aminopeptidase - urine

Leucine aminopeptidase urine test

Leukemia

Leukemia

Leukemia

Leukemia

Leukemia

Leukemia - resources

Leukemoid reaction
A leukemoid reaction is a reaction resembling , but is actually due to other conditions such as infections or other disease processes. As with leukemia, a person having a leukemoid reaction has a disorganized increase in immature white blood cells in the blood and bone marrow.

Leukemoid reaction
A leukemoid reaction is a reaction resembling , but is actually due to other conditions such as infections or other disease processes. As with leukemia, a person having a leukemoid reaction has a disorganized increase in immature white blood cells in the blood and bone marrow.

Leukemoid reaction

Leukemoid reaction
A leukemoid reaction is a reaction resembling , but is actually due to other conditions such as infections or other disease processes. As with leukemia, a person having a leukemoid reaction has a disorganized increase in immature white blood cells in the blood and bone marrow.

Leukocyte alkaline phosphatase

Leukocyte alkaline phosphatase (LAP)
This is a test that measures the amount of an enzyme called within white blood cells (leukocytes).

Leukocyte alkaline phosphatase (LAP)
This is a test that measures the amount of an enzyme called within white blood cells (leukocytes).

Leukocyte esterase
Leukocyte esterase is a urine test for the presence of white blood cells and other abnormalities associated with infection.

Leukocyte esterase

Leukocyte esterase
Leukocyte esterase is a urine test for the presence of white blood cells and other abnormalities associated with infection.

Leukoencephalopathy

Leukoplakia
Leukoplakia is a precancerous lesion that develops on the tongue or the inside of the cheek as a response to irritation. Occasionally, leukoplakia patches develop on the female external genitalia.

Leukoplakia

Leukoplakia
Leukoplakia is a precancerous lesion that develops on the tongue or the inside of the cheek as a response to irritation. Occasionally, leukoplakia patches develop on the female external genitalia.

Leukoplakia
Leukoplakia is a precancerous lesion that develops on the tongue or the inside of the cheek as a response to irritation. Occasionally, leukoplakia patches develop on the female external genitalia.

Leydig cell tumor
A leydig cell tumor is a of the testicle consisting of masses of abnormal interstitial cells that may secrete . This is an uncommon tumor in prepubertal children, but may be the cause of early puberty. It is found more commonly in adult males.

Leydig cell tumor
A leydig cell tumor is a of the testicle consisting of masses of abnormal interstitial cells that may secrete . This is an uncommon tumor in prepubertal children, but may be the cause of early puberty. It is found more commonly in adult males.

Leydig cell tumor

Leydig cell tumor
A leydig cell tumor is a of the testicle consisting of masses of abnormal interstitial cells that may secrete . This is an uncommon tumor in prepubertal children, but may be the cause of early puberty. It is found more commonly in adult males.

Lice, body with stool (Pediculus humanus)

Lice, head - nits in the hair with close-up

Lichen nitidus on the abdomen

Lichen planus
Lichen planus is a disorder of the skin and mucous membranes resulting in inflammation, itching, and distinctive .

Lichen planus

Lichen planus
Lichen planus is a disorder of the skin and mucous membranes resulting in inflammation, itching, and distinctive .

Lichen planus
Lichen planus is a disorder of the skin and mucous membranes resulting in inflammation, itching, and distinctive .

Lichen planus - close-up

Lichen planus on the arm

Lichen planus on the hands

Lichen planus on the oral mucosa

Lichen simplex chronicus
Lichen simplex chronicus is a skin disorder characterized by chronic itching and scratching. The constant scratching causes thick, leathery, brownish skin.

Lichen simplex chronicus

Lichen simplex chronicus
Lichen simplex chronicus is a skin disorder characterized by chronic itching and scratching. The constant scratching causes thick, leathery, brownish skin.

Lichen simplex chronicus
Lichen simplex chronicus is a skin disorder characterized by chronic itching and scratching. The constant scratching causes thick, leathery, brownish skin.

Lichen simplex chronicus

Lichen simplex chronicus on the ankle

Lichen simplex chronicus on the back

Lichen striatus - close-up

Lichen striatus - close-up

Lichen striatus on the leg

Lichenified
Lichenified means the skin has become thickened and leathery with an accentuation of the skin lines. This often results from continuous friction on an area of skin.

Lichenified

Lifestyle changes

Lifestyle changes

Lighter fluid
This poisoning is caused by an exposure to lighter fluid.

Lighter fluid
This poisoning is caused by an exposure to lighter fluid.

Lighter fluid poisoning

Lily of the valley

Lily-of-the-valley
Poisoning from eating plant parts of the lily-of-the-valley.

Lily-of-the-valley
Poisoning from eating plant parts of the lily-of-the-valley.

Limb plethysmography

Limb-girdle muscular dystrophies
Limb-girdle muscular dystrophies include at least 10 different inherited disorders that initially affect the muscles around the shoulder girdle and the hips. These diseases are progressive and may involve other muscles over a period of time.

Limb-girdle muscular dystrophies
Limb-girdle muscular dystrophies include at least 10 different inherited disorders that initially affect the muscles around the shoulder girdle and the hips. These diseases are progressive and may involve other muscles over a period of time.

Limb-girdle muscular dystrophies
Limb-girdle muscular dystrophies include at least 10 different inherited disorders that initially affect the muscles around the shoulder girdle and the hips. These diseases are progressive and may involve other muscles over a period of time.

Limb-girdle muscular dystrophies

Limbic system

Limbic system

Limited range of motion
Limited range of motion is a reduction in the normal distance and direction through which a joint can move.

Limited range of motion

Limited range of motion

Lip moisturizer poisoning

Lip moisturizers
This poisoning is from ingestion of lip moisturizers.

Lip moisturizers
This poisoning is from ingestion of lip moisturizers.

Lipase test

Lipase test
A blood test that measures the amount of the lipase.

Lipase test
A blood test that measures the amount of the lipase.

Lipocytes (fat cells)

Lipocytes (fat cells)

Lipofuscin

Lipofuscin

Lipoma - arm

Lipoprotein-a

Lipoprotein-a

Lipoprotein-a

Liposuction
Liposuction is the removal of excess body fat by suction with specialized surgical equipment, typically performed by a plastic surgeon.

Liposuction
Liposuction is the removal of excess body fat by suction with specialized surgical equipment, typically performed by a plastic surgeon.

Liposuction

Liposuction

Liposuction

Liposuction - series

Liposuction - series

Liposuction - series

Liposuction - series

Liposuction - series

Lipstick
This poisoning is from an overdose of lipstick.

Lipstick
This poisoning is from an overdose of lipstick.

Lipstick
This poisoning is from an overdose of lipstick.

Liquid medication administration

Liquid nitrogen

Listeriosis
Listeriosis is a disease caused by infection with the organism .

Listeriosis
Listeriosis is a disease caused by infection with the organism .

Listeriosis

Listeriosis
Listeriosis is a disease caused by infection with the organism .

Lithium overdose
Poisoning from an overdose of lithium.

Lithium overdose
Poisoning from an overdose of lithium.

Lithium toxicity

Lithotripsy

Lithotripsy

Lithotripsy

Lithotripsy procedure

Lithotripsy procedure

Livedo reticularis - close-up

Livedo reticularis on the legs

Liver

Liver

Liver

Liver anatomy

Liver and spleen cysts - CT scan

Liver biopsy

Liver biopsy

Liver biopsy

Liver biopsy

Liver biopsy

Liver blood supply

Liver cell death

Liver cirrhosis, CT scan

Liver culture

Liver disease

Liver disease

Liver disease

Liver disease

Liver disease - resources

Liver echinococcus - CT scan

Liver fattening, CT scan

Liver function tests

Liver function tests

Liver function tests
Common tests that are used to evaluate liver function include:

Liver function tests
Common tests that are used to evaluate liver function include:

Liver metastases

Liver metastases

Liver metastases

Liver metastases

Liver metastases, CT scan

Liver scan
A liver scan uses a radioactive isotope to help determine how well the liver and/or spleen is functioning.

Liver scan

Liver scan

Liver scan
A liver scan uses a radioactive isotope to help determine how well the liver and/or spleen is functioning.

Liver spots

Liver spots

Liver spots

Liver spots

Liver transplant

Liver transplant
Liver transplant is surgery to replace a diseased liver with a healthy liver from a donor.

Liver transplant
Liver transplant is surgery to replace a diseased liver with a healthy liver from a donor.

Liver transplant - series

Liver transplant - series

Liver transplant - series

Liver with disproportional fattening, CT scan

Lobar intracerebral hemorrhage
Lobar intracerebral hemorrhage involves bleeding in a localized area of the brain near its outer surfaces (cerebrum).

Lobar intracerebral hemorrhage
Lobar intracerebral hemorrhage involves bleeding in a localized area of the brain near its outer surfaces (cerebrum).

Lobar intracerebral hemorrhage

Lobar intracerebral hemorrhage
Lobar intracerebral hemorrhage involves bleeding in a localized area of the brain near its outer surfaces (cerebrum).

Lobes of the brain

Location of peptic ulcers

Location of peptic ulcers

Location of whiplash pain

Lomotil overdose
Poisoning from an overdose of Lomotil, an anti-diarrheal, which is a medication comprised of a narcotic agent (opoid derivative) and atropine.

Lomotil overdose

Lomotil overdose
Poisoning from an overdose of Lomotil, an anti-diarrheal, which is a medication comprised of a narcotic agent (opoid derivative) and atropine.

Long bones

Long bones

Lordosis

Lordosis
Lordosis is an increased curvature of the normally curved lumbar spine.

Lordosis

Losing weight with exercise

Loss of a child - resources

Loss of a spouse - resources

Low back pain - acute

Low back pain - chronic

Low back pain glossary

Low back pain guide

Low back pain: Key points

Low back pain: Personal stories

Low back pain: Personal stories

Low back pain: Personal stories

Low blood sugar symptoms

Low blood sugar symptoms

Low nasal bridge

Low nasal bridge

Low nasal bridge
A low nasal bridge describes a flattening of the bridge of the nose.

Lower digestive anatomy

Lower esophageal ring

Lower esophageal ring (Schatzki)
An abnormal ring of tissue located at the junction of the esophagus (the tube from the mouth to the stomach) and the stomach, which can cause swallowing problems.

Lower esophageal ring (Schatzki)
An abnormal ring of tissue located at the junction of the esophagus (the tube from the mouth to the stomach) and the stomach, which can cause swallowing problems.

Lower esophageal ring (Schatzki)
An abnormal ring of tissue located at the junction of the esophagus (the tube from the mouth to the stomach) and the stomach, which can cause swallowing problems.

Lower extremity venography
Veins are not normally seen in an X-ray, so a contrast material is injected into the vein to make it visible. In this test, the contrast material is injected into the vein of the affected leg.

Lower extremity venography
Veins are not normally seen in an X-ray, so a contrast material is injected into the vein to make it visible. In this test, the contrast material is injected into the vein of the affected leg.

Lower leg edema

Lower leg muscles

Lower leg muscles

Lower respiratory tract

Lucey-Driscoll Syndrome
Lucey-Driscol Syndrome is an inherited metabolic disorder characterized by severe hyperbilirubinemia () that is present in the infant at birth.

Lucey-Driscoll Syndrome
Lucey-Driscol Syndrome is an inherited metabolic disorder characterized by severe hyperbilirubinemia () that is present in the infant at birth.

Lucey-Driscoll Syndrome
Lucey-Driscol Syndrome is an inherited metabolic disorder characterized by severe hyperbilirubinemia () that is present in the infant at birth.

Ludwigs angina
Ludwig's angina is a bacterial infection of the floor of the mouth. It involves swelling that may block the airway.

Ludwigs angina
Ludwig's angina is a bacterial infection of the floor of the mouth. It involves swelling that may block the airway.

Ludwigs angina

Ludwigs angina
Ludwig's angina is a bacterial infection of the floor of the mouth. It involves swelling that may block the airway.

Lumbar MRI scan

Lumbar puncture

Lumbar puncture (spinal tap)

Lumbar puncture (spinal tap)

Lumbar spinal surgery - series

Lumbar spinal surgery - series

Lumbar spinal surgery - series

Lumbar spinal surgery - series

Lumbar spinal surgery - series

Lumbar spinal surgery - series

Lumbar spinal surgery - series

Lumbar spine CT scan

Lumbar vertebrae

Lumbar vertebrae

Lumbar vertebrae

Lumbosacral spine CT
A lumbosacral spine CT involves of the lower spine and surrounding tissues.

Lumbosacral spine CT

Lumbosacral spine CT
A lumbosacral spine CT involves of the lower spine and surrounding tissues.

Lumbosacral spine MRI

Lumbosacral spine MRI

Lumbosacral spine MRI

Lumbosacral spine X-ray

Lumbosacral spine X-ray

Lumbosacral spine x-ray

Lump in the abdomen

Lump in the abdomen
This lump is a soft bulge of tissue or a small, localized swelling on the abdomen. See also (a solid block of tissue that can be felt inside the abdomen).

Lumpectomy

Lumps in the breasts

Lumps in the breasts

Lumps in the breasts

Lumps in the breasts

Lung Cancer

Lung PET scan

Lung anatomy

Lung biopsy

Lung cancer

Lung cancer

Lung cancer

Lung cancer

Lung cancer - chemotherapy treatment

Lung cancer - chemotherapy treatment

Lung cancer - non-small cell

Lung cancer - non-small cell

Lung cancer - non-small cell

Lung cancer - non-small cell

Lung cancer - small cell
Lung cancer is a malignant of the lungs. There are many types of lung cancer, but most can be categorized into two basic types, "small cell" and "" Small cell lung cancer is generally faster growing than non-small cell, but more likely to respond to chemotherapy.

Lung cancer - small cell

Lung cancer - small cell
Lung cancer is a malignant of the lungs. There are many types of lung cancer, but most can be categorized into two basic types, "small cell" and "" Small cell lung cancer is generally faster growing than non-small cell, but more likely to respond to chemotherapy.

Lung cancer - small cell
Lung cancer is a malignant of the lungs. There are many types of lung cancer, but most can be categorized into two basic types, "small cell" and "" Small cell lung cancer is generally faster growing than non-small cell, but more likely to respond to chemotherapy.

Lung cancer, frontal chest x-ray

Lung cancer, lateral chest x-ray

Lung diffusion testing
Lung diffusion testing is used to determine how well oxygen passes from the air sacs of the lungs into the blood.

Lung diffusion testing

Lung diffusion testing
Lung diffusion testing is used to determine how well oxygen passes from the air sacs of the lungs into the blood.

Lung diffusion testing

Lung diffusion testing

Lung disease

Lung disease

Lung disease

Lung disease

Lung disease - resources

Lung gallium (Ga.) scan
This is a type of involving radioactive gallium, which helps determine whether a patient has inflammation in the lungs.

Lung gallium (Ga.) scan
This is a type of involving radioactive gallium, which helps determine whether a patient has inflammation in the lungs.

Lung gallium scan

Lung mass, right lung - CT scan

Lung mass, right upper lobe - CT scan

Lung mass, right upper lung - chest x-ray

Lung needle biopsy
A lung needle biopsy is the process of obtaining and examining a sample of lung tissue.

Lung needle biopsy

Lung needle biopsy
A lung needle biopsy is the process of obtaining and examining a sample of lung tissue.

Lung needle biopsy culture
This is a laboratory test to isolate and identify organisms that cause infection from a lung specimen.

Lung needle biopsy culture

Lung needle biopsy culture
This is a laboratory test to isolate and identify organisms that cause infection from a lung specimen.

Lung nodule - front view chest x-ray

Lung nodule, right lower lung - CT scan

Lung nodule, right middle lobe - chest x-ray

Lung plethysmography

Lung problems and volcano smog

Lung surgery
Lung surgery is any surgical procedure that allows the surgeon to directly affect the lungs. Examples include removal of a section of lung because of a tumor or an infection, of the lung to obtain a diagnosis, and lung transplantation.

Lung surgery
Lung surgery is any surgical procedure that allows the surgeon to directly affect the lungs. Examples include removal of a section of lung because of a tumor or an infection, of the lung to obtain a diagnosis, and lung transplantation.

Lung surgery

Lung tissue biopsy

Lung transplant

Lung transplant
Lung transplant is surgery to replace one or both diseased lungs with healthy lungs from a human donor.

Lung transplant
Lung transplant is surgery to replace one or both diseased lungs with healthy lungs from a human donor.

Lung transplant - series

Lung transplant - series

Lung with squamous cell cancer - CT scan

Lungs

Lungs

Lungs - infant

Lupus - resources

Lupus anticoagulants
Lupus anticoagulants are antibodies against phospholipids (a group of substances in cell membranes) which inhibit blood clotting in a test tube, but may be associated with a higher risk of clotting in people who have them in their blood.

Lupus anticoagulants
Lupus anticoagulants are antibodies against phospholipids (a group of substances in cell membranes) which inhibit blood clotting in a test tube, but may be associated with a higher risk of clotting in people who have them in their blood.

Lupus anticoagulants

Lupus anticoagulants
Lupus anticoagulants are antibodies against phospholipids (a group of substances in cell membranes) which inhibit blood clotting in a test tube, but may be associated with a higher risk of clotting in people who have them in their blood.

Lupus nephritis
Lupus nephritis is a kidney disorder that is a complication of , characterized by damage to the glomerulus and progressive loss of kidney function.

Lupus nephritis

Lupus nephritis
Lupus nephritis is a kidney disorder that is a complication of , characterized by damage to the glomerulus and progressive loss of kidney function.

Lupus nephritis
Lupus nephritis is a kidney disorder that is a complication of , characterized by damage to the glomerulus and progressive loss of kidney function.

Lupus, discoid - view of lesions on the chest

Lupus, discoid on a child's face

Lupus, discoid on the face

Luteal phase defect

Luteal phase defect

Luteal phase defect

Luteal phase defect

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme Disease and Related Tick-Borne Infections

Lyme disease

Lyme disease
Lyme disease is an inflammatory disease characterized by a skin rash, joint inflammation, and flu-like symptoms, caused by the bacterium transmitted by the bite of a deer tick. See also .

Lyme disease
Lyme disease is an inflammatory disease characterized by a skin rash, joint inflammation, and flu-like symptoms, caused by the bacterium transmitted by the bite of a deer tick. See also .

Lyme disease

Lyme disease
Lyme disease is an inflammatory disease characterized by a skin rash, joint inflammation, and flu-like symptoms, caused by the bacterium transmitted by the bite of a deer tick. See also .

Lyme disease

Lyme disease

Lyme disease - Borrelia burgdorferi organism

Lyme disease - chronic persistent
Chronic persistent Lyme disease is a late stage of an inflammatory disease caused by the bacterium , which is transmitted by the bite of a deer .

Lyme disease - chronic persistent

Lyme disease - chronic persistent
Chronic persistent Lyme disease is a late stage of an inflammatory disease caused by the bacterium , which is transmitted by the bite of a deer .

Lyme disease - chronic persistent
Chronic persistent Lyme disease is a late stage of an inflammatory disease caused by the bacterium , which is transmitted by the bite of a deer .

Lyme disease - early disseminated
Secondary Lyme disease is an inflammatory disease characterized by cardiac and neurological symptoms caused by the bacterium , which is transmitted by the bite of a deer .

Lyme disease - early disseminated
Secondary Lyme disease is an inflammatory disease characterized by cardiac and neurological symptoms caused by the bacterium , which is transmitted by the bite of a deer .

Lyme disease - early disseminated

Lyme disease - early disseminated
Secondary Lyme disease is an inflammatory disease characterized by cardiac and neurological symptoms caused by the bacterium , which is transmitted by the bite of a deer .

Lyme disease - primary

Lyme disease - primary
An inflammatory disease characterized by a skin rash (or rashes) and flu-like symptoms caused by the bacterium and transmitted by the deer tick.

Lyme disease - primary
An inflammatory disease characterized by a skin rash (or rashes) and flu-like symptoms caused by the bacterium and transmitted by the deer tick.

Lyme disease - primary
An inflammatory disease characterized by a skin rash (or rashes) and flu-like symptoms caused by the bacterium and transmitted by the deer tick.

Lyme disease and related tick-borne infections

Lyme disease and related tick-borne infections

Lyme disease and related tick-borne infections

Lyme disease antibody
These tests are used to confirm the diagnosis of .

Lyme disease antibody
These tests are used to confirm the diagnosis of .

Lyme disease antibody

Lyme disease organism, Borrelia burgdorferi

Lyme disease, erythema chronicum migrans

Lymph follicular hypertrophy
Lymph follicular hypertrophy is increased size of the lymph follicles. Lymph nodes act as filters keeping organisms, especially bacteria, from entering the bloodstream. See also .

Lymph follicular hypertrophy
Lymph follicular hypertrophy is increased size of the lymph follicles. Lymph nodes act as filters keeping organisms, especially bacteria, from entering the bloodstream. See also .

Lymph follicular hypertrophy
Lymph follicular hypertrophy is increased size of the lymph follicles. Lymph nodes act as filters keeping organisms, especially bacteria, from entering the bloodstream. See also .

Lymph node biopsy

Lymph node biopsy

Lymph node biopsy

Lymph node culture
Lymph node culture is a laboratory test performed on a lymph node to identify organisms (bacteria, viruses, and fungus) that cause infection.

Lymph node culture

Lymph node culture

Lymph node culture
Lymph node culture is a laboratory test performed on a lymph node to identify organisms (bacteria, viruses, and fungus) that cause infection.

Lymph node metastases, CT scan

Lymph nodes

Lymph system

Lymph tissue in the head and neck.

Lymph tissue in the head and neck.

Lymph vessels and nodes of pelvis

Lymphadenitis

Lymphadenitis and lymphangitis
Lymphadenitis and lymphangitis are infection of the (also called lymph glands) and lymph channels, respectively.

Lymphadenitis and lymphangitis
Lymphadenitis and lymphangitis are infection of the (also called lymph glands) and lymph channels, respectively.

Lymphadenitis and lymphangitis
Lymphadenitis and lymphangitis are infection of the (also called lymph glands) and lymph channels, respectively.

Lymphangiogram

Lymphangiogram

Lymphangiogram

Lymphangiogram

Lymphangitis

Lymphatic drainage

Lymphatic obstruction
Lymphatic obstruction involves blockage of the lymph vessels, which drain fluid from tissues throughout the body and allow immune cells to travel where they are needed.

Lymphatic obstruction

Lymphatic obstruction
Lymphatic obstruction involves blockage of the lymph vessels, which drain fluid from tissues throughout the body and allow immune cells to travel where they are needed.

Lymphatic obstruction
Lymphatic obstruction involves blockage of the lymph vessels, which drain fluid from tissues throughout the body and allow immune cells to travel where they are needed.

Lymphatic system

Lymphatic system

Lymphatic system

Lymphofollicular hyperplasia

Lymphogranuloma venereum

Lymphogranuloma venereum

Lymphogranuloma venereum

Lymphogranuloma venereum

Lymphoid hyperplasia
Lymphoid hyperplasia is the of normal cells resembling lymph tissue.

Lymphoid hyperplasia
Lymphoid hyperplasia is the of normal cells resembling lymph tissue.

Lymphoid hyperplasia

Lymphoid hyperplasia
Lymphoid hyperplasia is the of normal cells resembling lymph tissue.

Lymphoma

Lymphoma, malignant - CT scan

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

Lymphomas (Non-Hodgkin's)

MIBG (iodine-131-meta-iodobenzylguanidine) scintiscan
This is a test that uses injected radioactive material () and a special scanner to locate or confirm (an adrenal gland ).

MIBG (iodine-131-meta-iodobenzylguanidine) scintiscan
This is a test that uses injected radioactive material () and a special scanner to locate or confirm (an adrenal gland ).

MIBG injection

MIBG scintiscan

MMR vaccine

MRI

MRI

MRI

MRI of the brain

MRI of the brain

MRI of the head

MRI of the head

MRI scans

MRI scans

MRSA

MRSA infection

MRSA infection

MRSA infection

MUGA test

Macroamylasemia

Macroamylasemia

Macroamylasemia

Macroamylasemia

Macroglobulinemia of Waldenstrom
Macroglobulinemia of Waldenstrom is a cancer of the B lymphocytes (a type of white blood cell) which causes overproduction of monoclonal macroglobulin (IgM).

Macroglobulinemia of Waldenstrom

Macroglobulinemia of Waldenstrom
Macroglobulinemia of Waldenstrom is a cancer of the B lymphocytes (a type of white blood cell) which causes overproduction of monoclonal macroglobulin (IgM).

Macroglobulinemia of Waldenstrom
Macroglobulinemia of Waldenstrom is a cancer of the B lymphocytes (a type of white blood cell) which causes overproduction of monoclonal macroglobulin (IgM).

Macroglossia

Macroglossia

Macroglossia

Macrosomia

Macrosomia

Macula

Macula lutea

Macular degeneration
Macular degeneration is a disorder that affects the macula (the part of the of the eye) causing decreased visual acuity and possible loss of central vision.

Macular degeneration

Macular degeneration

Macular degeneration
Macular degeneration is a disorder that affects the macula (the part of the of the eye) causing decreased visual acuity and possible loss of central vision.

Macular degeneration
Macular degeneration is a disorder that affects the macula (the part of the of the eye) causing decreased visual acuity and possible loss of central vision.

Macular degeneration

Macule
A macule is a small, flat, distinct colored area of skin that is less than 10 millimeters in diameter, and does not include a change in skin texture or thickness.

Macule

Magic markers
Poisoning caused by an overdose of magic marker.

Magic markers

Magic markers
Poisoning caused by an overdose of magic marker.

Magnesium in diet
Magnesium is an essential mineral for human nutrition.

Magnesium in diet
Magnesium is an essential mineral for human nutrition.

Magnesium in diet
Magnesium is an essential mineral for human nutrition.

Magnesium in diet

Magnetic resonance angiography

Maindex

Maindex

Maindex

Maintenance

Major depression

Major depression

Major depression

Major depression

Major depression with psychotic features
This is a condition in which depression is associated with absence of contact with reality (psychosis). This can take the form of false beliefs (delusions) or detecting something that isn't really there (hallucination). See also and .

Major depression with psychotic features
This is a condition in which depression is associated with absence of contact with reality (psychosis). This can take the form of false beliefs (delusions) or detecting something that isn't really there (hallucination). See also and .

Major depression with psychotic features

Major depression with psychotic features
This is a condition in which depression is associated with absence of contact with reality (psychosis). This can take the form of false beliefs (delusions) or detecting something that isn't really there (hallucination). See also and .

Make-up
This poisoning is from ingestion of a liquid make-up.

Make-up
This poisoning is from ingestion of a liquid make-up.

Make-up
This poisoning is from ingestion of a liquid make-up.

Making the decision to quit tobacco

Malabsorption
Malabsorption is difficulty in the digestion or absorption of nutrients from food substances.

Malabsorption
Malabsorption is difficulty in the digestion or absorption of nutrients from food substances.

Malabsorption

Malabsorption
Malabsorption is difficulty in the digestion or absorption of nutrients from food substances.

Malaise
Malaise is a generalized feeling of discomfort, illness, or lack of well-being that can be associated with a disease state. It can be accompanied by a sensation of exhaustion or inadequate energy to accomplish usual activities.

Malaise

Malaria
Malaria is a parasitic disease characterized by fever, chills, and anemia.

Malaria
Malaria is a parasitic disease characterized by fever, chills, and anemia.

Malaria

Malaria

Malaria
Malaria is a parasitic disease characterized by fever, chills, and anemia.

Malaria, microscopic view of cellular parasites

Malaria, microscopic view of cellular parasites

Malaria, photomicrograph of cellular parasites

Malathion
Poisoning caused by an overdose of malathion.

Malathion
Poisoning caused by an overdose of malathion.

Malathion poisoning

Male and female reproductive systems

Male bladder anatomy

Male pattern baldness

Male pattern baldness
Male pattern baldness is the most common type of hair loss in men. It usually follows a typical pattern of receding hairline and hair thinning on the crown, and is caused by hormones and genetic predisposition.

Male pattern baldness
Male pattern baldness is the most common type of hair loss in men. It usually follows a typical pattern of receding hairline and hair thinning on the crown, and is caused by hormones and genetic predisposition.

Male pattern baldness

Male pattern baldness
Male pattern baldness is the most common type of hair loss in men. It usually follows a typical pattern of receding hairline and hair thinning on the crown, and is caused by hormones and genetic predisposition.

Male reproductive anatomy

Male reproductive anatomy

Male reproductive anatomy

Male reproductive hygiene

Male reproductive system

Male specific cancer / Prostate Cancer

Male urinary sagittal section

Male urinary system

Male urinary tract

Male urinary tract

Malignancy

Malignancy

Malignant hypertension

Malignant hypertension (arteriolar nephrosclerosis)
Malignant hypertension is usually defined as very with swelling of the optic nerve behind the eye, called papilledema (grade IV Keith-Wagner hypertensive retinopathy). Malignant hypertension is usually accompanied by other organ damage like heart failure, kidney failure, and hypertensive encephalopathy.

Malignant hypertension (arteriolar nephrosclerosis)
Malignant hypertension is usually defined as very with swelling of the optic nerve behind the eye, called papilledema (grade IV Keith-Wagner hypertensive retinopathy). Malignant hypertension is usually accompanied by other organ damage like heart failure, kidney failure, and hypertensive encephalopathy.

Malignant hypertension (arteriolar nephrosclerosis)
Malignant hypertension is usually defined as very with swelling of the optic nerve behind the eye, called papilledema (grade IV Keith-Wagner hypertensive retinopathy). Malignant hypertension is usually accompanied by other organ damage like heart failure, kidney failure, and hypertensive encephalopathy.

Malignant hyperthermia
Malignant hyperthermia is a group of inherited muscle problems characterized by muscle breakdown following certain stimuli -- such as anesthesia, extremes of exercise (particularly in hot conditions), fever, or use of stimulant drugs. The problems associated with this condition result from over-excitable muscles that contract uncontrollably, severe fever, abnormal heart rhythms, and kidney failure.

Malignant hyperthermia
Malignant hyperthermia is a group of inherited muscle problems characterized by muscle breakdown following certain stimuli -- such as anesthesia, extremes of exercise (particularly in hot conditions), fever, or use of stimulant drugs. The problems associated with this condition result from over-excitable muscles that contract uncontrollably, severe fever, abnormal heart rhythms, and kidney failure.

Malignant hyperthermia

Malignant hyperthermia
Malignant hyperthermia is a group of inherited muscle problems characterized by muscle breakdown following certain stimuli -- such as anesthesia, extremes of exercise (particularly in hot conditions), fever, or use of stimulant drugs. The problems associated with this condition result from over-excitable muscles that contract uncontrollably, severe fever, abnormal heart rhythms, and kidney failure.

Malignant melanoma

Malignant otitis externa

Malignant otitis externa

Malignant otitis externa

Malignant otitis externa

Malignant teratoma
Malignant teratoma is a type of cancer consisting of that contain one or more of the three main types of cells present in embryos -- ectoderm, mesoderm, and endoderm cells.

Malignant teratoma
Malignant teratoma is a type of cancer consisting of that contain one or more of the three main types of cells present in embryos -- ectoderm, mesoderm, and endoderm cells.

Malignant teratoma

Malignant teratoma
Malignant teratoma is a type of cancer consisting of that contain one or more of the three main types of cells present in embryos -- ectoderm, mesoderm, and endoderm cells.

Malignant teratoma

Mallory-Weiss tear
A Mallory-Weiss tear occurs in the at the junction of the esophagus and the stomach, causing bleeding.

Mallory-Weiss tear
A Mallory-Weiss tear occurs in the at the junction of the esophagus and the stomach, causing bleeding.

Mallory-Weiss tear

Mallory-Weiss tear

Mallory-Weiss tear
A Mallory-Weiss tear occurs in the at the junction of the esophagus and the stomach, causing bleeding.

Malnutrition
Malnutrition means a person's body is not getting enough nutrients. The condition may result from an inadequate or unbalanced diet, digestive difficulties, absorption problems, or other medical conditions.

Malnutrition

Malnutrition
Malnutrition means a person's body is not getting enough nutrients. The condition may result from an inadequate or unbalanced diet, digestive difficulties, absorption problems, or other medical conditions.

Malnutrition
Malnutrition means a person's body is not getting enough nutrients. The condition may result from an inadequate or unbalanced diet, digestive difficulties, absorption problems, or other medical conditions.

Malocclusion of teeth

Malocclusion of teeth
Malocclusion means the teeth are not aligned properly.

Malocclusion of teeth
Malocclusion means the teeth are not aligned properly.

Malocclusion of teeth
Malocclusion means the teeth are not aligned properly.

Malocclusion of teeth

Mammary gland

Mammary gland

Mammogram

Mammogram

Mammogram - calcifications

Mammogram - recommended age

Mammography
A mammogram is an picture of the breasts. It is used to detect tumors and and to help differentiate (noncancerous) and malignant (cancerous) disease.

Mammography

Mammography
A mammogram is an picture of the breasts. It is used to detect tumors and and to help differentiate (noncancerous) and malignant (cancerous) disease.

Mammography

Mammoplasty

Mandibular fracture

Maple syrup urine disease
Maple syrup urine disease is an inherited disease of amino acid that causes , central nervous system symptoms, and urine that may smell sweet like maple syrup.

Maple syrup urine disease

Maple syrup urine disease
Maple syrup urine disease is an inherited disease of amino acid that causes , central nervous system symptoms, and urine that may smell sweet like maple syrup.

Maple syrup urine disease
Maple syrup urine disease is an inherited disease of amino acid that causes , central nervous system symptoms, and urine that may smell sweet like maple syrup.

Marfan syndrome
Marfan syndrome is an inheritable disorder of connective tissue (which adds strength to the body's structures) that affects the skeletal system, system, eyes, and skin.

Marfan syndrome
Marfan syndrome is an inheritable disorder of connective tissue (which adds strength to the body's structures) that affects the skeletal system, system, eyes, and skin.

Marfan syndrome

Marfan syndrome
Marfan syndrome is an inheritable disorder of connective tissue (which adds strength to the body's structures) that affects the skeletal system, system, eyes, and skin.

Marfan syndrome

Margarine vs butter

Margarine vs. butter

Marijuana intoxication
is the most commonly used illegal drug in the United States. The drug is primarily smoked, sometimes eaten. Its intoxicating effects include relaxation, sleepiness, and mild euphoria (getting high).

Marijuana intoxication

Marijuana intoxication
is the most commonly used illegal drug in the United States. The drug is primarily smoked, sometimes eaten. Its intoxicating effects include relaxation, sleepiness, and mild euphoria (getting high).

Marijuana intoxication
is the most commonly used illegal drug in the United States. The drug is primarily smoked, sometimes eaten. Its intoxicating effects include relaxation, sleepiness, and mild euphoria (getting high).

Marine animal stings or bites

Marine animal stings or bites
This injury is described as a poisonous bite or sting from any form of marine life.

Marine animal stings or bites
This injury is described as a poisonous bite or sting from any form of marine life.

Marine animal stings or bites
This injury is described as a poisonous bite or sting from any form of marine life.

Mastectomy

Mastectomy

Mastectomy

Mastectomy - series

Mastectomy - series

Mastectomy - series

Mastectomy - series