 Cases will be identified in one of two ways. Pathology records will be reviewed for the years 1985-present. All patients with diagnoses of pancreatic cancer, uterine cancer,lymphoma, melanoma, cancer of the gallbladder and bile duct, stomach cancer, brain cancer, ovarian cancer, colon cancer, head and neck cancer, lung cancer and breast cancerincluding DCIS from 1985 to the present at MSKCC will be identified. 