[First bite syndrome after parapharyngeal space tumor surgery:two cases report]

Ten patients with parapharyngeal space tumor, all underwent surgery, which of two cases concurrent FBS，analyze its clinical characteristics and review the related literatures. Two cases complicated with FBS, both with primary healing of incision, the pathological diagnosis are pleomorphic adenoma and schwannoglioma respectively, both give non-steroidal anti-inflammatory drugs, paregoric and anticonvulsants, followed up for nine months and 16 months respectively, both two cases partial relief. FBS is one of surgical complications of parapharyngeal space，which should not be neglected by physicians. Additional investigations of FBS are needed to gain a better understanding of the pathophysiological mechanisms of this condition.