Neural Sheath Liposarcoma: A Case Report

Abstract

Liposarcoma is a malignant mesenchymal tumor of the adipose tissue [1]. Liposarcomas most frequently arise from the deep-seated stroma rather than the submucosal or subcutaneous fat [2]. The most recent World Health Organization classification of soft tissue tumors recognizes five categories of liposarcomas: (1) well differentiated, which includes the adipocytic, sclerosing, and inflammatory subtypes; (2) de differentiated; (3) myxoid; (4) round cell; and (5) pleomorphic [2–4]. The anatomical distribution of liposarcoma appears to be partly related to the histologic type. Well differentiated liposarcoma tends to occur in deep soft tissues of both the limbs and the retroperitoneum. Myxoid and/or round-cell liposarcomas and pleomorphic liposarcomas have a striking predilection for the limbs, and de differentiated liposarcoma occurs predominantly in the retroperitoneum [4].