| 陈晓丽,王振常,杨本涛,鲜军舫,刘中林,燕飞.CT和MR诊断7例外耳道腺样囊性癌[J].中国医学影像技术,2009,25(9):1570~1572 |
| CT和MR诊断7例外耳道腺样囊性癌 |
| CT and MRI diagnosis of adenoid cystic carcinoma of the external auditory canal: 7 cases report |
| 投稿时间：2009-01-15 修订日期：2009-03-23 |
| DOI： |
| 中文关键词: 肿瘤,腺样囊性 耳道 体层摄影术,X线计算机 磁共振成像 |
| 英文关键词:Carcinoma, adenoid cystic Ear canal Tomography, X-ray computed Magnetic resonance imaging |
| 基金项目: |
|
| 摘要点击次数: 2627 |
| 全文下载次数: 960 |
| 中文摘要: |
| 目的 探讨CT和MR在诊断外耳道腺样囊性癌中的应用价值。方法 7例经组织病理学证实的外耳道腺样囊性癌患者均接受CT检查,4例接受MR检查,分析CT、MR表现并与病理结果对照。结果 7例均为单耳发病,左耳3例,右耳4例;表现为外耳道局部隆起1例、肿块6例;形态规则1例、不规则6例;累及软骨部3例,软骨部与骨部均受累3例,颞骨及耳周广泛受累1例;侵犯中耳2例、腮腺2例、颞颌关节1例;骨质破坏5例,骨质受压1例,无骨质改变1例;T1WI呈低信号3例,等信号1例,T2WI均为高信号,增强扫描呈不均匀强化3例,均匀强化1例。结论 外耳道腺样囊性癌患者术前行CT和MR对该肿瘤定位、定量诊断有重要价值。 |
| 英文摘要: |
| Objective To investigate the clinical applications of CT and MRI in diagnosing adenoid cystic carcinoma (ACC) of the external auditory canal (EAC). Methods CT scanning was performed in all 7 patients with ACC of the EAC confirmed by histopathology, and 4 patients received MR scanning. All imaging data of CT and MR were compared with histopathologic findings retrospectively. Results ACC were found in the left EAC in 3 and in the right EAC in 4 patients. Masses of the EAC were displayed in 6 patients, and swelling of local soft tissue was detected in only 1 patient. ACC of the EAC was regularly shaped in 1 patient, but irregularly shaped in 6 patients. ACC located in the chondral part of EAC in 3 patients, in both the osteal and chondral part of EAC in other 3, and extended almost the whole temporal bone and spread around the ear in the rest one. The lesions extended into the middle ear in 2 patients, the parotid gland in 2, and the temporomandibular joint in 1 patient. Bone destruction was found with CT in 5 patients, bone compression in 1, and no bone involvement in 1 patient. MR T1WI demonstrated hypointense signal in 3 patients and isointense signal in 1, MR T2WI showed hyperintense signal in all 4 patients. Postcontrast MR imaging displayed heterogeneous contrast enhancement in 3 patients and isogeneous enhancement in the rest one. Conclusion CT and MRI can quantitatively localize and diagnose ACC of EAC before surgery. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
