Pelvic lipomatosis: effect of diet.

Pelvic lipomatosis is a disease of dense infiltration of benign fatty tissue within the confines of the deep bony pelvis. A case is reported of an obese, hypertensive, thirty-nine-year-old black man with the typical clinical and radiographic features of pelvic lipomatosis. Prolonged fasting produced an extensive weight loss and profound resolution of his presenting symptoms, signs, and radiologic abnormalities. Subsequent regain of weight resulted in the reappearance of the disorder, confirming that pelvic lipomatosis may be a disease of accelerated and excessive fat deposition which can be reversed by dietary restriction. The literature pertaining to pelvic lipomatosis is reviewed in detail.