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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

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

Essential tremor

Learn about this condition that causes uncontrollable shaking and find out how it differs from Parkinson's disease.
Disease

Pulmonary hypertension

This lung condition makes the heart work harder and become weak. Changes in genes and some medicines and diseases can cause it. Learn more.
Disease

Neuromyelitis optica

Learn about this condition that affects the spinal cord and eye nerves and is sometimes mistaken for multiple sclerosis.
Disease

Bone spurs

Joint damage due to osteoarthritis is the most common cause of these bony growths.
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

Geographic tongue

Geographic tongue may look alarming, but it does not cause health issues. Sometimes it can cause tongue pain and make you more sensitive to certain foods.
Disease

Pediatric brain tumors

Pediatric brain tumors include medulloblastoma, glioma, embryonal tumor, germ cell brain tumor, spinal cord tumor, craniopharyngioma and pineoblastoma.
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

Cluster headache

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