泪腺腺样囊性癌CT表现的研究

CT features findings of adenoid cystic carcinoma in lacrimal gland

目的 分析泪腺腺样囊性癌常见的CT图像特征,从而探讨CT（computed tomography）影像对于泪腺腺样囊性癌的诊断价值.方法 病历来源为天津医科大学眼科中心及天津医科大学第二医院,经病理确诊的眼眶腺样囊腺癌39例.其中原发肿瘤20例,复发肿瘤19例,均为单眼发病,所有患者均行眼眶CT检查,获取水平及冠状扫描图像.结果 泪腺腺样囊性癌中原发肿瘤形状多为厚扁平状,贴附于眶壁增长,在体层像上呈锥形者10例、不规则形5例;复发肿瘤形状为不规则型8例、厚扁平状,贴附于眶外上壁向后增长者8例.原发与复发泪腺腺样囊腺癌的好发位置位于眶外上方分别为18例与11例.结论 CT可清晰显示肿瘤的位置,形状,范围、眶骨壁改变,对于泪腺腺样囊性癌的诊断和制定治疗方案具有重要指导意义.

Objective To analyze imaging characteristics of adenoid cystic carcinoma（ACC）of lachrymal gland on CT for the diagnosis of ACC in clinic. Methods Thirty-nine patients with ACC consisting of 20 cases of primary tumor and 19 cases of recurred tumors confirmed by pathology were collected from The Eye Centre of Tianjin Medical University and The Second Hospital of Tianjin Medical University. All the patients were unilateral, and examined by CT. The imaging characteristics of ACC on CT were analyzed. Results The most common shape of primary ACC included 10 cases of conical-shape, 5 cases of irregular-shape. The recurred cases contained 8 cases of irregular-shape, 8 cases of conical-shape. The primary and recurred ACC usually existed on superior-external side, with which there were 18 cases and 11 cases respectively. Conclusions CT examination can exactly reveal the shape, size, position, and ossa orbitale destruction of ACC and played an important role in the diagnosis of ACC.