CT evaluation of tumorous lesion extending in and into the infratemporal fossa.

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Twenty patients with tumorous lesions extending in and into the infratemporal fossa were examined by CT at the Department of Dental Radiology, Kyusyu University Dental Hospital during the period from March, 1985 to September, 1988. They ranged in age from 6 to 75 years (mean, 52.7 years). Eleven were males.<BR>CT images of these patients were analyzed in detail and the results include:<BR>1. CT appearances of extension in and into the infratemporal fossa were classified into four types according to the primary site. Further, in cases of tumors originating in the oral cavity the appearances were subclassified into three types.<BR>2. In 17 of 20 patients (85%), bone involvement adjacent to the infratemporal fossa was detected by CT.<BR>3. The changes on CT images were considered to reflect clinical signs, such as trismus and sensory changes involving the the fifth nerve (the second and the third division) and others.
特定非営利活動法人日本口腔科学会の論文