移行上皮癌が合併した原発性限局性腎盂アミロイドーシスの1例

Primary localized amyloidosis of renal pelvis is very rare, and only 12 cases have been reported. More than half of the reported cases were treated by nephrectomy, and the preoperative diagnosis could not be made correctly because of its resemblance to renal pelvic tumor. The ureteroscopy is a useful diagnostic means in such a condition. This case is unusual in that a papillary transitional cell carcinoma was present coincidentally.