title: Pathologic quiz case. A 73-year-old man with a bladder mass. Combined primary small cell neuroendocrine carcinoma and high-grade papillary urothelial carcinoma of the urinary bladder.
authors.affiliation: Department of Pathology, City of Hope National Medical Center, Duarte, Calif 91010, USA. SLau@coh.org
authors.forename: Sean K
authors.initials: SK
authors.lastname: Lau
authors.forename: Yibin
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D000368:Aged; D018288:Carcinoma, Small Cell / Q000737:chemistry / Q000473:pathology*; D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000737:chemistry / Q000473:pathology*