title: Primary signet ring cell carcinoma of the urinary bladder.
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000473:pathology*; D000328:Adult; D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D006801:Humans; D008297:Male; D001749:Urinary Bladder Neoplasms / Q000473:pathology*