International journal of urology : official journal of the Japanese Urological Association
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Review Case Reports
Squamous cell carcinoma in the renal pelvis of a horseshoe kidney.
We report a rare case of squamous cell carcinoma in the renal pelvis of a horseshoe kidney. An 80-year-old woman was referred to the National Nagano Hospital for the examination of occult blood in her urine. Microscopic hematuria was found, but pyuria was not seen. ⋯ We reviewed 24 cases of renal pelvic tumor in horseshoe kidneys previously reported in Japan. Seven cases (30%) included components of squamous cell carcinoma. The incidence is higher than that of renal pelvic tumors in the general population.