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The Korean Journal of Pathology 1990;24(4): 502-508.
Hemangiopercytoma of the Meninges: The immunohistochemical study for the relationship between hemangiopericytic meningioma and peripheral hemangiopericytoma.
Sun Hee Yoon, Weon Yeong Choi, Sook Nyo Lee, In Sook Lim, Sook Hee Hong
Department of Pathology, College of Medicine, Inje University, Pusan, Korea.
Hemangiopericycic maningioma is clinically and pathologically similar to peripheral Hemangiopericytoma and now tends to be terned as hemangiopericytoma of central nervous system. The authors studied 3 cases of hemangiopericytic meningioma obtained from 3 patients, 1 case of meningotheliomatous meningioma, angioblastic meningioma and transitional meningioma, and 2 cases of peripheral hemangiopericytoma, which had operated from November 1988 to May 1989 at the department of neurosurgery, Pusan Inje University Hospital. The authors analysed and compared the immunohistochemical finding and light microscopic apearance. The results obtained were summarized as follows; 1) Classic maningioma (meningotheliomatous meningioma, transitional meningioma and angioblastic meningioma) shows reactivity to both EMA and vimentin. 2) Hemangiopercicytic meningioma and peripheral hemangiopericytoma are reactive only to vimentin, so the two tumors are suggested as same type of tumor. 3) One of 3 cases of hemangiopericytic meningioma shows whorling and interlacing bundles of spindle cells, the peculiar light microscopic features of transitional meningioma, suggesting transitional or mixed form of hemangiopericytic meningioma and transitional meningioma.
Key Words: Hemangiopericytic meningioma; Hemangiopericytoma; Vimentin; EMA
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