case_images: PMC6462390_01
case_images: PMC6462390_02
case_images: Cerebral axial T2-weighted magnetic resonance imaging showing a well circumscribed multi-lobulated extra-axial mass in the right cerebellopontine angle with cerebellar compression
case_images: PAMJ-31-127-g001.jpg
case_images: PMC6462390_02_PAMJ-31-127-g001.jpg
case_images: f0001
case_images: The cranial nerve complexes VII and VIII could not be differentiated from the mass and the radiological diagnosis at that time was acoustic neurinoma (Figure 1).
case_images: Microscopic appearance of the tumour showing papillary structures lined by a single layer of cuboidal epithelium (Hematoxylin and Eosin x 250)
case_images: PAMJ-31-127-g002.jpg
case_images: PMC6462390_02_PAMJ-31-127-g002.jpg
case_images: f0002
case_images: The neoplastic cells showed monomorphic nuclei with no mitotic figures, atypia or necrosis seen (Figure 2).
case_images: Immunostaining feature: positivity of tumoral cells for epithelial membrane antigen (EMA) (x 250)
case_images: PAMJ-31-127-g003.jpg
case_images: PMC6462390_02_PAMJ-31-127-g003.jpg
case_images: f0003
case_images: Immunohistochemical study was performed and the tumour showed positivity towards cytokeratin, epithelial membrane antigen (EMA), vimentin and focal positivity towards glial fibrillary acidic protein (GFAP) (Figure 3).