[A case of sclerosing lipogranuloma].

Although sclerosing lipogranuloma is relatively rare, it is of special interest to urologists because the majority of the cases occur in the genital and urinary tracts. A 49-year-old man complained of urinary frequency and lower abdominal pain. IVP examination revealed compression and irregularity of dome of bladder. CT scan showed giant abnormal mass upper dome of bladder. The tumor and part of the bladder which was adhered to it were excised. Histological findings were necrosis of the fat cells with liberation of fat droplets into the intercellular spaces. There were giant cells clinging to fatty masses and small fat vacuoles in them. Essentially sclerosing lipogranuloma is a disease affecting the fat cells which for some unknown reason undergo a degenerative type of change which results in rupture of the cells with liberation of free fat droplets into the surrounding intercellular spaces and then reaction around. Complete surgical excision is the treatment of choice. Otherwise the lesion recurs.