title: [Undifferentiated small-cell carcinoma of the urinary bladder].
abstract: We report a case of undifferentiated small cell carcinoma of the urinary bladder in a 64-year-old male patient. Microscopically the tumor was similar to the intermediate type of small cell carcinoma of the lung, with some foci of transitional papillary carcinoma, adenocarcinoma and carcinoma in situ. Small cell carcinoma is seldom encountered in the urinary bladder. It is more aggressive and must be distinguished from poorly differentiated transitional cell carcinoma.
authors.affiliation: Servicio de Anatomía Patológica, Hospital Virgen Blanca, León, España.
authors.forename: D
authors.initials: D
authors.lastname: Suárez Vilela
authors.forename: J S
authors.initials: JS
authors.lastname: Salas Valien
authors.forename: M A
authors.initials: MA
authors.lastname: González Morán
authors.forename: A
authors.initials: A
authors.lastname: Giménez Pizarro
mesh_terms: D000230:Adenocarcinoma / Q000737:chemistry / Q000175:diagnosis / Q000473:pathology*; D014408:Biomarkers, Tumor / Q000032:analysis; D002278:Carcinoma in Situ / Q000737:chemistry / Q000175:diagnosis / Q000473:pathology*; D018288:Carcinoma, Small Cell / Q000737:chemistry / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology*; D002295:Carcinoma, Transitional Cell / Q000737:chemistry / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000032:analysis; D009378:Neoplasms, Multiple Primary / Q000737:chemistry / Q000473:pathology*; D001749:Urinary Bladder Neoplasms / Q000737:chemistry / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D009363:Neoplasm Proteins
vernacular_title: Carcinoma indiferenciado de células pequeñas de vejiga urinaria.