Liposarcoma of paravesical space

The second reported case of primary paravesical tumor is described. A seventy-five-year-old man complained of increasing difficulty on urination. Physical examination revealed a visible aand palpable mass in the hypogastrium. The cystogram disclosed a unilateral crescent-shaped configuration of the urinary bladder. A tumor mass was surgically removed from the extraperitoneal paravesical space. The histologic diagnosis of the tumor was myxoid liposarcoma. A feature of primary paravesical tumor, which is derived from connective tissue, is that it manifests no symptoms or signs until the tumor attains considerable size. Primary paravesical tumor, heretofore unclassified, is a urologic entity.