骨盤腎に発生した腎盂扁平上皮癌の1例

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A 51-year-old man was admitted to our hospital in 1978 with chief complaits of right lower abdominal pain and gross hematuria. IVP revealed right non-visualizing kidney and normal left kidney. Right pelvic kidney with hydronephrosis and several renal stones was found by right retrograde pyelography. Malignant cells of the squamous cell carcinoma was found by urinary cytology. Although pelvic arteriography revealed irregular narrow right iliac arteries, right renal artery and tumor vessels were not clearly visualized. Right scrotal contents were absent and not palpable in the inguinal region. Preoperative diagnosis were infected hydronephrosis and perinephritis of the right pelvic kidney with renal stones, and squamous cell carcinoma of the renal pelvis was suspected. Right nephrectomy was performed with difficulty, because of extrarenal large infected mass encasing right iliac vessels. Right abdominal undescended testicle was also extirpated. Extirpated kidney revealed solid tumor in one of the markedly dilated renal calices invading to extrarenal tissue through the thin renal parenchyma, and no tumor was found in the renal pelvis. Histological diagnosis was squamous cell carcinoma. The patient died 3 months after operation. The literatures were reviewed and complications of the pelvic kidney and squamous cell carcinoma of the renal pelvis were briefly discussed.
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