鼻窦恶性肿瘤的CT和MRI诊断及窦外侵犯途径  

Diagnosis of paranasal sinus malignant tumor with CT and MRI and invasion paths outside of paranasal sinuses

作　　者：韩雪立[1] 韩亚君[2] 董辉球[1] 刘文烈[1] 

机构地区：[1]吉林大学第二医院放射线科,吉林长春130041 [2]吉林省白城市医院供应科

出　　处：《吉林大学学报（医学版）》2005年第5期771-773,共3页Journal of Jilin University：Medicine Edition

基　　金：吉林省科技厅资助课题(2003421-02)

摘　　要：目的:探讨鼻窦恶性肿瘤的CT、MRI表现及其窦外侵犯途径。方法:回顾性分析31例鼻窦恶性肿瘤的CT、MRI资料,根据CT、MRI征象判断肿瘤的侵犯范围及其窦外侵犯途径。结果:鼻窦恶性肿瘤多原发于上颌窦17例(54.8%),其次是筛窦10例(32.3%)和额窦4例(12.9%)。CT、MRI 27例表现边界不清的软组织病灶,CT、MRI增强扫描分别为8、11例表现为低至中度强化。22例病变超出鼻腔鼻窦而侵犯翼腭窝、眼眶等窦外结构。结论:CT、MRI能较准确地显示肿瘤的原发部位及其对窦外结构的侵犯并判断其侵犯途径。Objective To study the CT, MRI performance and invasion paths outside paranasal sinus malignant tumor. Methods The data of CT and MRI of 31 patients with paranasal sinuses malignant tumor were analyzed, tumor＇s invasion scope and invasion paths outside according to the CT, MRI signs and symptoms. Results Paranasal sinus malignant tumor root mainly in maxillary sinus 17 cases （54.8%）, then ethmoid sinus 10 cases （32.3%）, and fronta（ sinus 4 cases （12.9%）. The CT and MRI results showed soft tissue disease focus was found and its boundary was not clear, enhancement CT and MRI scanning showed 8 and 11 cases had low and middle degrees enhancement, respectively. The pathological changes in 22 cases often be outside the nasal cavity and paranasal sinus but infringed upon the pterygopalatine fossa, orbit. Conclusion CT and MRI can display exactly tumor＇s primary focus and its invasion outside the paranasal sinus and judge its invasion path.

关 键 词：鼻窦 肿瘤 体层摄影术 X线计算机 核磁共振成像 

分 类 号：R739.65[医药卫生—肿瘤]