Middle cranial fossa tumors of rare and atypical CT features

ABSTRACT

Six different brain tumors in middle cranial fossa are presented which are studied by CT and proved pathologically. The authors experienced rare tumors in middle cranial fossa such as cavernous hemangioma, cysticmeningioma, Schwannoma, Masson's vegetant intravascular hemangioendothelioma and other tumors (arteriovenousmal formation and metastatic adenoid cystic carcinoma) whose CT findings were atypical. The results are as follows; 1. I case of tumors in middle cranial fossa, basal and coronal sections are necessary for further evaluation of the relation with dura and adjacent bone changes. 2. In suspicion of metastasis, bone setting should be done to find out bone involvement. 3. Internal carotid angiography gave little help in the differential diagnosis of tumors in middle cranial fossa.