Medical

A lymphoma is a cancer that develops in the lymphatic system. The most common symptom of non-Hodgkin lymphomas is a painless swelling in the lymph nodes in the neck, underarm, or groin.

A malignant tumor of the lung, the major organ of respiration. Lung cancer kills more men and women than any other form of cancer.

A malignant tumor of the stomach. Gastric cancer can develop in any part of the stomach and can spread from the stomach to other organs.

A malignant tumor of the esophagus. The risk of cancer of the esophagus is increased by long-term irritation of the esophagus, such as from smoking, heavy alcohol intake, and Barrett esophagitis.

Methods used to find cancer in persons who may or may not have symptoms. Symptoms of cancer are abnormal sensations or conditions that persons can notice that are a result of the cancer.

A malignant tumor arising from the inner wall of the large intestine (the colon). In the US, colon cancer is the third leading type of cancer in males and the fourth in females.

A malignant tumor arising from the inner wall of the large intestine (the colon). In the US, colon cancer is the third leading type of cancer in males and the fourth in females.

See: Cervical cancer.

A number of factors have been identified that increase the risk of breast cancer. One of the strongest of these risk factors is the history of breast cancer in a relative.

Cancer of the central information processing center of the body. Tumors in the brain can be malignant or benign, and can occur at any age. Only malignant tumors are cancerous.