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The Korean Journal of Cytopathology 1994;5(2): 167-171.
Cytodiagnosis of Primary Small Cell Carcinoma of the Urinary Bladder: A Case Report.
Hye Sun Kim, Aee Ree Kim, Chul Hwan Kim, Yang Seok Chae, Nam Hee Won
Department of Anatomic Pathology, Korea University Guro Hospital, Korea.
ABSTRACT
Samll cell carcinoma of the urinary bladder is a rare tumor which occurs in about 0.48% of all bladder tumors. We report cytologic features of small cell carcinoma of the urinary bladder in a 66-year-old man who had painless total gross hematuria, which was confirmed by partial cystectomy. In urine cytology, abundant tumor cells appeared in scattered and clustered forms in a bloody background. The tumor cells were small and uniform in size with a high nuclear/cytoplasmic ratio. The nuclei of the tumor cells were hyperchromatic, characteristically molded and showed inconspicuous nucleoli. The cytoplasms were scanty and plae blue.
Key Words: Small cell carcinoma; Urine cytology; Urineary bladder