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논문 기본 정보

자료유형
학술저널
저자정보
윤영균 (경희대학교 의과대학 부속병원 방사선과학교실)
저널정보
대한영상의학회 대한방사선의학회지 대한방사선의학회지 제18권 제1호
발행연도
1982.1
수록면
57 - 62 (6page)

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The advent of computerized cranial tomography represents a great advance in the diagnosis of very wide variety of intracranial lesions. The CT findings of acoustic neuroma have been reported by many authors, especially by Hatam in early contrast enhancement and evaluation of the internal auditory meatus. We have analysed 22 pathologically proven cases of acoustic neuroma examined at the Kyung Hee University Hospital from October 1977 to June 1981 and the results were as follows. 1. The sex ratio was 12 females to 10 males and the greatest number of cases (27%) were seen 수 fourth decade. 2. The precontrast CT scan of the tumor appeared as isodensity in 10 cases (46%), low density in 8 cases (36%) and high density in 4 cases (18%). The shape of tumor was found in 10 cases (46%), irregular amorphous in 9 cases (41%) and ovoid in 3 cases (13%). 3. The tumor was located at both anterior and posterior sides of porus acousticus in 17 cases (77%), and only posterior side in 5 cases (23%),. Associated hydrocephalus and intratumoral calcification were found in 18 cases (82%) and 1 case (4%), respectively. Bilateral involvement of the tumor was not seen. 4. In postcontrast CT scan, all of the acoustic neuromas but one, were enhanced and well defined. The most frequent enhancement pattern was heterogenous enhancement, seen in 10 cases (46%), but there was no specific enhancement.

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