颞下窝病变CT MRI诊断

本文报告了87例经病理证实颞下窝病变CT或MRI表现,发现该窝病变以继发肿瘤为主（79/87）,也可见于炎症（4/87）,原发肿瘤少见（4/87）。继发侵犯可来自窝壁各方向,但以鼻咽癌内侧壁、上颌窦癌前壁侵入为主。文内讨论了颞下窝解剖定位及继发侵犯的改变特点,指出横切CT和MRI对观察颞下窝病变具有基本等同诊断作用,并应为首选扫描方位。

CT and MRI Diagnosis of Infratemporal Fossa Lesion

CT and MRI findings of 87 cases of infratemporal fossa lesion proved pathologically were presented. It was found that fossa lesions were mainly caused by the secondaey invasions (79 cases), and also by infectious disease (four cases), but not commonly by primary tumors (four cases). The secondary invasion could come from any wall of the fossa, but mainly from interior wall by the extension of nasopharyngeal carcinoma and from anterior wall by the invasion of carcinoma of maxillary sinus. The anatomy of the fossa and the characteristics of the secondary invasion were discussed. It was emphasized that the transversal CT and MRI scans were basically the same in diagnosis of the fossa disease and could be the first study method.