結石を伴った原発性尿管扁平上皮癌の1例

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A case of primary squamous cell carcinoma of the ureter associated with ureteral calculus is presented. A 66-year-old woman was admitted to our hospital, with the chief complaint of macroscopic hematuria in October, 1985. A kidney-ureter-bladder X-ray and drip intravenous pyelography failed to reveal the calculus shadow clearly. However, computerized tomographic scan revealed the calculus shadow clearly adjacent to the ureteral tumor, and retrograde pyelography revealed the filling defect on a third lower portion of the left ureter. She was diagnosed with tumor of the ureter associated with the calculus. She underwent complete nephroureterectomy with excision of a periureteral cuff of the bladder. The tumor was diagnosed histologically as squamous cell carcinoma. Metastases and recurrence of tumor have never occurred on July, 1987. Forty-four cases of the primary ureteral squamous cell carcinoma could be collected in the Japanese literature. Moreover, we deal with this disease associated with the ureteral calculus.