脂肪瘤发生干口腔颌面部者较为少见。我科1974～1984年10年内住院病人中,间叶组织肿瘤有93例,其中脂肪瘤仅2例,占2.2%。现报道如下:例1,患者女,16岁。发现口底有肿块逐渐增大12年,近3年发展迅速,语言含糊不清,妨碍进食。检:肿块质软、无痛,几乎占据整个口腔,舌被推向左上方,萎缩成条索状肿块并向右颌下膨出,约5.5×4.5cm~2,活动,表面光滑,皮肤无红肿粘连。细胞学检查:报告仅见脂肪滴。临床诊断为脂肪瘤。1983年 The occurrence of lipomas in dry oral and maxillofacial regions is rare. Among the inpatients in our department from 1974 to 1984, there were 93 cases of mesenchymal tumors, of which only 2 cases were lipomas, accounting for 2.2%. The report is as follows: Case 1, female patient, 16 years old. It was found that the bottom of the mouth had a lump gradually increasing for 12 years, and rapid development in the past 3 years. The language was vague and impeded eating. Examination: The mass is soft and painless. It occupies almost the entire mouth, and the tongue is pushed to the upper left. It shrinks into a cord-like mass and bulges right submandibular, about 5.5×4.5cm 2 , active, smooth surface, no skin Inflammation and adhesions. Cytology: Only fat droplets were reported. Clinical diagnosis is lipoma. 1983