Microcystic Meningioma: A case report.
- Author:
Gyeong Sin LEE
;
Il Seon LEE
;
Bang HUR
;
Man Ha HUR
- Publication Type:Case Report
- Keywords:
Microcystic meningioma;
Immunohistochemistry;
Electron microscopy
- MeSH:
Female;
Humans;
Diagnosis, Differential;
Meningioma
- From:Korean Journal of Pathology
1994;28(2):185-190
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Microcystic meningioma, a distinct morphological variant of meningiomas, is histologically characterized by a vacuolated appearance with multiple cystic spaces lined by vacuolated or stellate-shaped tumor cells. We report a case of microcystic meningioma occuring in right frontoparietal area of 42-year-old woman, with emphasis on differential diagnosis, along with a review of literatures. Immunohistochemically, most of the tumor cells demonstrated positive immunoreactivity for both epithelial membrane antigen and vimentin. Electron microscopy showed that the extracellular space was extensive, where eletron-lucent material was occasionally seen. The tumor cells had long cytoplasmic processes showing complex interdigitation and a large number of desmosomes.
