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Egyptian Journal of Neurosurgery
Fig. 2 | Egyptian Journal of Neurosurgery

Fig. 2

From: Delayed presentation of primary parenchymal arachnoid cyst in adult population: a rare location of a common cyst—case report and review of the literature

Fig. 2

a Preoperative CT head (axial) shows hypodense lesion at the left posterior frontal area. b Post-op CT (axial) head shows excision of the cyst. c Histopathology revealed fibro collagenous cyst wall lined by flat to low cuboidal arachnoidal cells of single cell thickness suggestive of an arachnoid cyst. d Positive for vimentin. e Positive with epithelial membrane antigen (EMA) stain. f Slide was negative for glial fibrillary acidic protein (GFAP)

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