Renal Sinus Lipomatosis: A Report of Twenty-Six Cases

Abstract

SUMMARY A review of 3,500 intravenous pyelograms of patients attending a general hospital has been carried out and has shown an incidence of 0.66 per cent, for radiologically diagnosed renal sinus lipomatosis. Material obtained from this review and previously published literature suggests that there is no significant sex preponderance, that the entity is most commonly discovered in the sixth decade of life, and that possible aetiological factors are urinary stones, chronic pyelonephritis, obesity and hypertension. In about one‐fifth of cases no cause could be found. No definite evidence has been found to consider conditions other than those given above as causes of renal sinus lipomatosis. Three reasons for the importance of this condition are given.

Renal Replacement Lipomatosis Presenting in the Setting of Ureteral Stricture with Absence of Renal Calculus Disease

“…The first case was described in 1841 by Rayer [ 10 ] occurring in an autopsy performed in 1837 [ 11 ]. Several reported cases have been reported in the English literature, the majority of which are individual case reports and a few large case series [ 2 , 3 , 12 ]. Renal replacement lipomatosis is a rare, benign condition characterized by prominent fat proliferation of the renal sinus with atrophy of the renal parenchyma that may mimic other renal malignancies.…”

Asymmetrical lipomatosis: report of two cases

“…A pericardial accumulation of fat tissue is present (arrow 3). course, such as multiple symmetric lipomatosis (Enzi, 1984), pelvic lipomatosis (Engels, 1959), renal sinus lipomatosis (Windholz, 1957;Poilly et al, 1969), mediastino-abdominal lipomatosis , lipomatosis dolorosa (Dercum, 1942). …”

Bilateral Renal Replacement Lipomatosis: A Case Report on Rare Complication of Obstructive Uropathy

“…It is a rare complication and mostly described literature is for unilateral disease. According to one research, the incidence of RRL was found to be 0.66% in 3,500 cases of intravenous pyelogram and the ailment has no sex preponderance [ 2 ]. In the past, histopathological examination was pivotal for the diagnosis, but immense use of imaging studies has improved our knowledge to diagnose the disease in a non-invasive manner.…”