Secondary prostatic neoplasms are usually the result of direct invasion by neighboring organs or infiltration from hematological malignancies. Gastric adenocarcinoma metastasizing in the prostate is extremely rare and to our knowledge only seven cases have been documented in the literature. We report another case of a patient who underwent transurethral resection of the prostate for bladder outflow obstruction which incidentally revealed an occult metastatic adenocarcinoma from an undiagnosed gastric cancer.

We report a rare case of primary non-Hodgkin's B-cell lymphoma of the mucosa-associated lymphoid tissue (MALT) type occurring in the urinary bladder. A 70-year-old woman presented with gross haematuria, and an abdominal CT scan revealed a bladder tumour which was resected endoscopically. Histopathological diagnosis was confirmed by immunohistochemical staining and treated successfully with radiotherapy.