Neurosecretory granules in small cell invasive carcinoma of the urinary bladder
- 15 February 1981
Abstract
A 69-year-old man showed symptoms of urinary bladder irritability and hematuria. Cystoscopy and radiographic studies revealed a tumor within a bladder diverticulum. The tumor shared histologic and ultrastructural features with oat cell carcinoma of the lung, including the presence of small numbers of neurosecretory type granules. In spite of conservative surgical treatment, there has been no evidence of recurrent or metastatic tumor over 14 months of follow-up. Hypophosphatemia was present pre-operatively, but resolved spontaneously after tumor resection. In regard to histogenesis, a metaplastic origin is favored. This appears to be the first reported case of a neoplasm of Kultschitzky-type cells arising in the urinary bladder.Keywords
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