Medical

A form of treatment that uses a photosensitizing agent, administered by mouth or intravenously, which concentrates selectively in certain cells, followed by exposure of the involved tissue to a specia

An unreasonable sort of fear that can cause avoidance and panic. Phobias are a relatively common type of anxiety disorder.

A condition in which the foreskin of the penis is too tight to be pulled back to reveal the glans. This usually causes no problems and nothing needs be done.

A chemotherapy technique that may be used when melanoma occurs on an arm or leg.

Inflammation of the peritoneum (The peritoneum is the tissue layer of cells lining the inner wall of the abdomen and pelvis).

A problem with the functioning of the nerves outside the spinal cord. Symptoms of peripheral neuropathy may include numbness, weakness, burning pain (especially at night), and loss of reflexes.

Inflammation of the lining around the heart (the pericardium) that causes chest pain and accumulation of fluid around the heart (pericardial effusion).

An ulcer in the lining of the stomach, duodenum, or esophagus. Peptic ulcers affect millions of people in the US yearly.

See: Arthritis, systemic-onset juvenile rheumatoid.

One of the family of more than 100 viruses that are responsible for causing warts. Abbreviated HPV. The majority of HPVs produce warts on the hands, fingers, or face.