口底および舌に発生した脂肪肉腫の2例

概要

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Liposarcoma in the oral region is rare, although one of the most common malignant tumors in the soft tissues of the body in general. Liposarcoma usually arises in the deeper soft tissues such as the thighs, buttocks, and retroperitoneal area. Only three cases of liposarcoma in the floor of the mouth and tongue have been reported in the literature. Other sites in the oral region have been reported: seventeen in the cheek, five in the maxilla, three in the hard plate, two in the soft palate, one in the gingiva.<BR>Case 1: This report deals with a case of well-differentiated liposarcoma (WHO classification) of the floor of the mouth in a 62-year-old man, completely excised under local anesthesia. on February 3, 1986.<BR>Case 2: A 52-year-old man presented with a swelling on the right side of the tongue. Excisional biopsy revealed a myxoid liposarcoma. On September '14, 1987, subtotalglossectomy and upper neck dissection was performed.