Spizarny D L, Shepard J A, McLoud T C, Grillo H C, Dedrick C G
AJR Am J Roentgenol. 1986 Jun;146(6):1129-32. doi: 10.2214/ajr.146.6.1129.
The CT features of six cases of adenoid cystic carcinoma of the trachea are presented and compared to the bronchoscopic, surgical, and pathologic findings. CT accurately demonstrated extratracheal extension of tumor, which occurred in all six cases and which was not visible on standard chest radiographs. This information was helpful in planning the surgical approach. However, CT consistently underestimated the longitudinal extension of the lesion because of partial volume averaging and the tendency of adenoid cystic carcinoma to grow submucosally. CT was also a poor predictor of mediastinal organ invasion. Because recent advances in tracheal resection and carinal reconstruction have made many of these lesions resectable, CT is frequently used in the evaluation of the operability of patients with adenoid cystic carcinoma. However, its usefulness in this regard is limited, and conventional techniques such as standard tomography continue to play a role in preoperative assessment.
本文介绍了6例气管腺样囊性癌的CT特征，并与支气管镜、手术及病理检查结果进行了比较。CT准确显示了肿瘤的气管外侵犯，6例均出现这种情况，而在标准胸部X线片上不可见。这些信息有助于制定手术方案。然而，由于部分容积效应以及腺样囊性癌倾向于黏膜下生长，CT始终低估了病变的纵向范围。CT对纵隔器官侵犯的预测能力也较差。由于气管切除和隆突重建的最新进展使许多此类病变可切除，CT常用于评估腺样囊性癌患者的可手术性。然而，其在这方面的作用有限，标准断层扫描等传统技术在术前评估中仍发挥着作用。
