Journal of Pathology and Translational Medicine

Case Reports

Microcystic Meningioma: A case report.: Gyeong Sin Lee, Il Seon Lee, Bang Hur, Man Ha Hur; Korean J Pathol. 1994;28(2):185-190.

Abstract PDF: 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.

Cystic Meningioma: A case report.: Jae Hoon Park, So Yeon Yu, Youn Wha Kim, Yong Koo Park, Moon Ho Yang; Korean J Pathol. 1991;25(2):153-157.

Abstract PDF: Meningiomas are usually thought of as firm solid tumors and most standard references make no mention of cystic meningiomas. Although several cases of cystic meningioma have been reported in the literature and their neuroradiological features discussed, the rarity of this entity makes its preoperative diagnosis difficult. Recently, the authors encountered a case of cystic meningioma, which was thought as ependymal cyst or infarction, preoperatively. In this report the authors discussed its clinical, neuroradiological and pathological characteristics with brief reviews of the literature.

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