• Living With Cancer: PSA and prostate cancer

a middle-aged man with light gray hair looking serious and thoughtfulProstate cancer: Does PSA level affect prognosis? 
Prostate-specific antigen (PSA) is a protein made by prostate tissue. Men with prostate cancer often have elevated PSA levels, because the cancer cells make excessive amounts of this protein. In most cases, a higher PSA level indicates a poorer prostate cancer prognosis. Learn more from Dr. Erik Castle, a Mayo Clinic urologist

Kaposi's sarcoma
Kaposi's sarcoma is a type of cancer that forms in the lining of blood and lymph vessels. The underlying cause is infection with a virus that usually causes no symptoms because the immune system keeps it under control. However, in people with weakened immune systems, especially due to AIDS or taking anti-rejection drugs after a transplant, this virus could trigger Kaposi's sarcoma. Learn more about Kaposi's sarcoma and the treatments available.

Multiple myeloma: Diagnosis and treatment 
Multiple myeloma is a cancer that forms in a type of white blood cell called plasma cells. These cells help you fight infections by making antibodies that recognize and attack germs. Learn more about multiple myeloma and the treatments that can help relieve pain, control complications and slow the progress of the disease.