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방광에서 발생한 원발성 미분화성 소세포암종 1례

A Case of Primary Undifferentiated Small Cell Carcinoma of the Urinary Bladder

대한비뇨기과학회지 1995년 36권 4호 p.454 ~ 457
이선규 (  ) - 중앙대학교

張良棟 (  ) - 중앙대학교
강대주 (  ) - 중앙대학교

Abstract


Primary undifferentiated small cell carcinoma of the urinary bladder is a rare tumor. this tumor is basically identical to that of the small cell carcinoma of the lung in clinicopathologic aspect.
The origin of the tumor is still obscure, but two hypothesis are proposed. the first is normal and metaplastic neuroendocrine cells iocated in the bladder mucosa. the second is proliferating mucosal stem cells with multidirectional
differentiation.
We report a case of undifferentiated small cell carcinoma of urinary bladder in a 65 yearold man, who presented symptom of hematuria.

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