颌面部脂肪肉瘤较少见,发生于颊部脂肪垫的脂肪肉瘤更罕见,现报告1例:患者女,73岁,因颊部无痛性包块半年于1996年11月23日来我院就诊,门诊以:“右颊部包块待查”收入院。患者半年前发现右颊部有一蚕豆大包块,不痛亦无其他不适感,未经任何治疗,包块逐渐增大。患者否认局部有外伤及手术病史。专科检查:右面颊膨隆,表面皮肤颜色正常,包块不随体位改变而增大。触诊包块约6.0×6.0×4.0cm,质软但不均匀,部分区域质稍硬,边界清楚。无压痛,压之不缩小。张口不受限,右侧面颊部膨隆,粘膜颜色正常,腮腺导管口无充血,分泌液清亮,扁桃 Maxillofacial liposarcoma is rare, occurred in the fat pad of the buccal fat pad is more rare, is reported in 1 case: female patient, 73 years old, due to cheek painless mass six months in November 23, 1996 come to me Hospital treatment, clinic to: “Right cheek mass to be checked” income hospital. Six months ago, the patient found that there was a broad bean mass in the right cheek, with no pain and no other discomfort. Without any treatment, the mass gradually increased. Patients denied the local history of trauma and surgery. Specialist examination: right cheek bulging, the surface of the skin color is normal, mass does not change with the position increased. Palpation mass about 6.0 × 6.0 × 4.0cm, soft but uneven, slightly stiffer part of the region, the boundary is clear. No tenderness, pressure is not reduced. Open mouth is not limited, right cheek bulging, normal mucosal color, parotid duct mouth without congestion, secretions clear, almond