The mesothelium is a tissue that covers and protects the outer surface of some organs. Malignant mesothelioma is a rare kind of cancer that starts in the mesothelium. Learn more about symptoms, diagnosis, and treatments.

Medulloblastoma is a type of brain cancer. It most often affects children, but it can also happen in adults. These tumors often grow in the cerebellum, the part of the brain that controls balance and coordination.

Melanoma is a type of skin cancer. Here are answers to some frequently asked questions about melanoma.

Detailed information on merkel cell cancer, including diagnosis and treatment

Multiple myeloma is cancer that starts in plasma cells in your bone marrow. Learn more about symptoms, diagnosis, and treatments.