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CASE REPORT : Crush Cytology of Secretory Meningioma: A Case Report
( Na Rae Kim ),( Gie-taek Yee ),( Hyun Yee Cho ) 대한뇌종양학회·대한신경종양학회 2015 Brain Tumor Research and Treatment Vol.3 No.2
Secretory meningioma, a histologic subtype of meningioma of World Health Organization grade 1, is clinically significant because it is frequently accompanied by peritumoral brain edema. The patient was a 53-year-old woman suffering from dysarthria and motor weakness of the right arm. Enhanced magnetic resonance images showed an enhancing mass measuring 2.5 cm in size located in the right parietal convexity. Intraoperative squash cytology showed moderately cellular smears composed mainly of clusters of ovoid cells with scattered whorl formations. The cells had round nuclei and a moderate amount of eosinophilic cytoplasm with ill-defined cell borders. Neither atypia nor mitosis was observed. Some scattered round shaped eosinophilic refractile hyaline globules, measuring from 5 to 25 μm, were observed, and a periglobular halo was occasionally observed. The diagnosis of secretory meningioma should be made as early as possible so that neurosurgeons can prevent postoperative aggravation of peritumoral edema. We emphasize that cytologic findings including eosinophilic, non-fibrillary cytoplasm with eosinophilic refractile hyaline globules are helpful in differentiating secretory meningioma from other subtypes of meningioma, primary and metastatic brain tumors.
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