Mesenteric pleomorphic liposarcoma in an adolescent

We report a case of pleomorphic liposarcoma arising in the root of the mesentery of an adolescent girl. Pleomorphic liposarcoma is an extremely rare tumor in the pediatric age group, and few well-documented cases are found in the literature. To the best of our knowledge, none have been described in the abdomen. The histologic and ultra-structural features of this tumor are described, and the literature concerning pediatric pleomorphic liposarcoma is reviewed.