case_images: PMC5820885_01
case_images: Magnetic resonance imaging showing a well-defined, enhancing lesion 9 mm in diameter at left posterior epidural space at D8 location displacing and compressing the cord
case_images: AJNS-13-191-g001.jpg
case_images: PMC5820885_01_AJNS-13-191-g001.jpg
case_images: F1
case_images: Magnetic resonance imaging (MRI) of dorsal spine with whole spine screening (plain and contrast) was performed, which showed a well-defined enhancing mass lesion 9 mm in diameter in the left posterior epidural space at the D8 level [Figure 1].
case_images: Multiple sections showing tumor comprising of papillae lined by cuboidal to columnar epithelium with a central fibrovascular core. Mild nuclear pleomorphism can be appreciated. Focal areas of fibrin seen. (a) H and E, x100; (b-d) H and E, x400
case_images: AJNS-13-191-g002.jpg
case_images: PMC5820885_01_AJNS-13-191-g002.jpg
case_images: F2
case_images: On histopathology, sections showed bands of fibrocollagenous tissue and a tumor composed of papillae lined by cuboidal to columnar epithelium with a central fibrovascular core with mild nuclear pleomorphism [Figure 2].
case_images: Tumor cells showing positivity for vimentin, cytokeratins, fibrillary acidic protein and S-100 protein immunohistochemical stains
case_images: AJNS-13-191-g003.jpg
case_images: PMC5820885_01_AJNS-13-191-g003.jpg
case_images: F3
case_images: The MIB-1 labeling index was approximately 7-10% [Figures 3 and 4].
case_images: Tumor cells show positivity for synaptophysin, negativity for epithelial membrane antigen and chromogranin immunohistochemical stains. MIB-1 labeling index approximately 7-10%
case_images: AJNS-13-191-g004.jpg
case_images: PMC5820885_01_AJNS-13-191-g004.jpg
case_images: F4
case_images: The MIB-1 labeling index was approximately 7-10% [Figures 3 and 4].