患者男,18岁。因头颈部肿块18年收治入院。患者出生时发现头部有一“蚕豆”大小的肿块,肿块渐增大,近期自觉肿块增大较快有微痛,于1998年7月来我院就诊。查体:左侧头颅顶、枕部,左颜面部至下颌骨挂到颈部有无数个大小不等肿块,最大者直径约16ｃｍ,质软,个别肿块有囊性波动感; Patient male, 18 years old. Due to head and neck mass admitted to hospital for 18 years. Patients were found at the birth of a “broad bean” size of the tumor, the mass gradually increased, the recent rapid increase in conscious mass slightly pain, in July 1998 to our hospital. Physical examination: the left top of the head, occipital, left facial to the mandible to the neck there are numerous sizes of lumps, the largest diameter of about 16cm, soft, individual cystic fluctuations;