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Disease

Valley fever

Learn about symptoms and treatment for this lung infection caused by fungi found in the soil of desert regions.
Disease

Pericarditis

Inflammation of the tissue surrounding the heart can cause sharp chest pain and other symptoms. Know how pericarditis is diagnosed and treated.
Disease

Cluster headache

These painful headaches cause severe pain on one side of the head and tend to occur in bouts called cluster periods.
Disease

Listeria infection

This illness is caused by bacteria that spreads in food. It can be very serious for some people. Learn about symptoms, treatment and tips to prevent it.
Disease

Immune thrombocytopenia (ITP)

Caused by low levels of platelets, symptoms may include purple bruises called purpura, as well as tiny reddish-purple dots that look like a rash.
Disease

Amyotrophic lateral sclerosis (ALS)

This nervous system disease, also known as Lou Gehrig's disease, destroys nerve cells and gets worse over time.
Disease

Peripheral T-cell lymphoma

Learn about this type of non-Hodgkin lymphoma that affects the lymph nodes and can spread to the organs. Find out about symptoms, diagnosis and treatments.
Disease

Radiation sickness

Read about what happens when someone is exposed to high doses of radiation, and what you can do to prevent such exposure in an emergency.
Disease

Multiple endocrine neoplasia, type 2 (MEN 2)

Learn about this rare condition that causes tumors and overproduction of hormones.
Disease

Brain tumor

Find out more about the different types, signs, symptoms and causes of brain tumors, which are growths of cells in the brain.
Disease

C. difficile infection

Learn more about this diarrhea-causing infection that often occurs after antibiotic use. Many, but not all, people who get it are in health care facilities.
Disease

Ulcerative colitis

This type of inflammatory bowel disease causes swelling and sores in the digestive tract. Learn more about symptoms, treatment and managing flares.

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