腺样囊性癌的影像学诊断(附32例分析)

目的分析头部和气管腺样囊性癌（ＡＣＣ）的临床表现和影像学征象。方法对３２例经病理证实的腺样囊性癌进行回顾性分析。其中男２０例，女１２例，年龄范围２１～７３岁，平均年龄４６．２岁。结果ＡＣＣ具有浸润性生长的特点。ＣＴ有利于显示骨质破坏。ＭＲＩ可显示肿瘤边界及其侵犯范围。Ｔ２ＷＩ信号可反映组织类型，提示预后。结论ＡＣＣ缺乏特异性，确诊靠病理学诊断。本病具有明显沿神经扩展、少见淋巴转移的特点，有助于与其他肿瘤进行鉴别

Imaging diagnosis of adenoid cystic carcinoma: analysis of 32 cases

Purpose To evaluate the clinical findings and imaging characteristics of adenoid cystic carcinomas(ACC). Methods The case histories of 32 patients with ACC proven at histologic examination were retrospectively reviewed. There were twenty male patients and twelve female patients aged 21-73 with an average of 46.2. Results ACC appeared as poorly defined neoplasms with infiltrative margins. Computed tomography was useful to demonstrate bone destruction. Magnetic resonance imaging depicted the lesion and its extension in its entirety. Signal intensity on T 2 weighted MR images correlated with the degree of cellularity of the lesion,and might help determine the prognosis of the lesion. Conclusion ACC imaging is lack of specificity, and biopsy remains mandatory but tendency to spread through perineural spaces and few lymphatic metastasis are the common characteristics of ACC. Imaging examination defines the tumor and its extension and enables effective therapeutic planning and follow up evaluation.