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KMID : 0358319950360040454
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Korean Journal of Urology
1995 Volume.36 No. 4 p.454 ~ p.457
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A Case of Primary Undifferentiated Small Cell Carcinoma of the Urinary Bladder
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Abstract
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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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