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Hodgkin lymphoma is a cancer that begins in part of the immune system (the lymph system). White blood cells called lymphocytes can

Anal cancer is the abnormal growth of cells in the anus, which is the opening at the end of the rectum. Anal cancer is not common

Persistent atrial fibrillation is a type of atrial fibrillation, an irregular heart rhythm. Persistent means that episodes last

Guides you through decision to use active surveillance for men who have low-risk and for some men who have medium-risk localized

Growth and development milestones help you see how your child is doing compared with other children the same age. The milestones

Ages 11 through 14 are often called early adolescence. These years are an exciting time of varied and rapid changes. Your child

Cushing's disease is a type of Cushing's syndrome that's caused by a tumor in the pituitary gland. This type of tumor usually isn

Ages 15 to 18 are an exciting time of life. But these years can be challenging for teens and their parents. Emotions can change

When people use a tanning bed or booth or a sunlamp to get a tan, it's called indoor tanning. Indoor tanning uses artificial

Brucellosis is an infection caused by bacteria. It can be passed from animals to people. It sometimes causes long-term illness