脂肪瘤是源自间质的常见新生物，是由成熟脂肪细胞组成一有包膜的单个或分叶状良性肿瘤，硬度不一，甚而可呈囊样，３０％生于头颈部，尤多见于颈后部皮下，亦可生于颈前皮下、额下窝、口腔或口周、咽、喉、腮腺等部的皮下或粘膜下，起病隐袭，生长缓慢，除肿块对邻近结构的压 Lipoma is a common new organism derived from the stroma. It is composed of mature adipocytes composed of a single or lobulated benign tumor with different hardness, even cystic, 30% was born in the head and neck, especially in More common in the back of the neck subcutaneous, can also be born in the neck before the subcutaneous, frontal fossa, oral or perioral, pharynx, larynx, parotid gland and other subcutaneous or submucosal, insidious onset, slow growth, in addition to mass on the adjacent structure Pressure