A Rare and Giant Dedifferentiated Liposarcoma of Buccal Fat Pad

Although liposarcoma is one of the most common soft-tissue sarcomas, facial localization is extremely rare. The buccal fat pad is an important anatomic structure located in the face that recently gained interest as a result of increasing research on facial anatomy. In this paper, we report a case of giant liposarcoma originating from the buccal fat pad. The precise localization of the tumor was determined preoperatively with computed tomography examination. The liposarcoma that invaded the body· and the extensions of the buccal fat pad was resected completely. The pathological examination revealed a sclerosing, dedifferenciated liposarcoma, which is known to be very rare in the head and neck region. Only 51 cases of dedifferentiated liposarcoma of the head and neck have been reported, of theses only 5 in the cheek. In this report we present the only case of a dedifferentiated liposarcoma originating in the left buccal fat pad of the cheek.