140例第一、二鳃弓综合征患者腮腺发育状况分析

目的： 通过观察及评价第一、二鳃弓综合征（first and second branchial arch syndrome, FSBAS）患者头颅CT的腮腺影像,分析FSBAS患侧腮腺的发育状况。方法：回顾2013年1月—2018年11月在北京大学口腔医院口腔颌面外科接受治疗的140例第一、二鳃弓综合征病例,解读并整理放射科评价腮腺的CT报告结果,将其归纳为3类表现形式：第Ⅰ类—与对侧相比,腮腺大致对称;第Ⅱ类—患侧腮腺明显小于对侧（发育不良）;第Ⅲ类—患侧未见腮腺影像（缺如）。对3种类型的构成比进行分析。结果：140例FSBAS患者中,3类腮腺表现的构成比为第Ⅰ类32例,占22.9%;第Ⅱ类22例,占15.7%;第Ⅲ类86例,占61.4%。结论：第一、二鳃弓综合征的腮腺表型中,患侧腮腺缺如（或发育不良）占绝大多数。腮腺缺如或许可作为第一、二鳃弓综合征的主要表型之一。

Phenotype study of parotid gland in 140 patients with first and second branchial arch syndrome

PURPOSE: To explore parotid gland phenotype of patients with first and second branchial arch syndrome on spiral CT scans. METHODS: 140 patients with first and second branchial arch syndrome were included. The form and proportion of different parotid gland phenotypes were evaluated according to CT reports from medical imaging department of Peking University School of Stomatology. RESULTS: The three phenotypes of parotid gland in patients with first and second branchial arch syndrome included bilateral symmetry of parotid gland (22.9%), parotid gland hypoplasia (15.7%) and absence of parotid gland (61.4%). CONCLUSIONS: Parotid gland absence and hypoplasia are the main manifestations in patients with first and second branchial arch syndrome.