Abstract
CONSIDERABLE attention has been devoted in the recent urologic literature to a peculiar process termed periureteric fibrosis.1 2 3 4 5 6 7 8 9 Two such cases have been presented in the case records of the Massachusetts General Hospital in this journal.10 , 11 The possibility of retroperitoneal neoplasm was considered before operation in some of the reported cases, but this diagnosis was excluded on the basis of one or more biopsies of the retroperitoneal mass enveloping and compressing either or both ureters. Of 19 cases reported in the literature in English, the diagnosis of "periureteric fibrosis" in all but 1 rests solely on biopsy material. Most of the . . .