Primary localized amyloidosis of the renal pelvis coexisting with transitional cell carcinoma: a case report.

Primary localized amyloidosis of renal pelvis is very rare, and only 12 cases have been report­ ed. More than half of the reported cases were treated by nephrectomy, and the preoperative diag­ nosis could not be made correctly because of its resemblance to renal pelvic tumor. The uretero­ scopy is a useful diagnostic means in such a condition. This case is unusual in that a papillary transitional cell carcinoma was present coincidentally. (Acta Uro!' Jpn. 38: 699-702, 1992)