 A. Patients must have histopathological confirmation of prostate cancer by the Laboratory of Pathology of the National Cancer Institute NCI or Pathology Department of the National Naval Medical Center or Walter Reed Army Medical Center prior to entering this study. Patients whose pathology specimens are not available may be enrolled in the trial if the patient has a clinical course consistent with prostate cancer and available documentation from an outside pathology laboratory of the diagnosis. In cases where original tissue blocks or archival biopsy material is available, all efforts should be made to have the material forwarded to the research team for use in correlative studies. 