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KMID : 0352519940310020263
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Korea Univercity Medical Journal
1994 Volume.31 No. 2 p.263 ~ p.266
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The Anbalysis of Superficial Neurilemmoma Using Sonography: The Influence of
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Abstract
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We retrospectively analyzed the sonographic findings of 18 pathologically proven
superficial neurilemmomas in 17 patients during recent 5 years. We evaluated the contuor, size and internal echo pattern of the tumor, the presence of tumor capsule, and the degree of acoustic enhancement behind the tumor. We correlated the
posterior acoutic enhancement with the pathologic features. Eighteen tumors showed oval or round in contuor and 9 tumors revealed hypoechoic pattern, 3 tumors revealed homogenously echogenic pattern and 6 tumors revealed heterogenously
echogenic
pattern. Sixteen tumors showed the capsule of tumor Fourteen tumors showed posterior acoustic enhancement. Grade I posterior acoustic enhancements were noted at 10 MHz transducer examination only and Grade II posterior acoustic
enhancements
were noted at 5 MHz or 7.5 MHz tranducer examination. No definite correlation between hemorrhagic or cystic degenerations of superficial neurilemmomas and Grade II posterior acoustic enhancements were noted. The mean size of
hypoechoic superficial neurilemmoma was smallest and that of heterogenously echogenic superficial neurilemmoma was largest.
We conclude that sonographic exammination was useful for evaluation of superficial neurilemmoma.
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KEYWORD
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