case_images: PMC4960921_01
case_images: T1 Sagittal magnetic resonance imaging (MRI) with contrast (a) and T1 axial MRI (b) without demonstrating intradural extramedullary compressive lesion in D12-L1
case_images: SNI-7-492-g001.jpg
case_images: PMC4960921_01_SNI-7-492-g001.jpg
case_images: F1
case_images: A dorsolumbar magnetic resonance imaging (MRI) was performed, revealing a D12-L1 intramedullary mass, with necrosis and irregular contrast enhancement [Figure 1].
case_images: Dense cell proliferation is observed, with areas of spindle cell pattern (a: H&E), with some areas of pleomorphism, lots of mitosis, some of them atypical, and karyomegaly and nuclear irregularity (b: H&E). This neoplastic lesion was negative for cytokeratin (c: CkAE1/AE3) and intense and diffuse positivity form vimentin (d). Cell proliferation rate was high, about 30% (e: Ki67), showing glial fibrillary acid protein positive (f)
case_images: SNI-7-492-g002.jpg
case_images: PMC4960921_01_SNI-7-492-g002.jpg
case_images: F2
case_images: Histopathological examination confirmed that the lesion was a GBS [Figure 2].
case_images: (a) T1 axial magnetic resonance imaging (MRI) with contrast revealing an enhancing mass in the left atrium. (b) T1 sagittal MRI with contrast showing an enhancing mass in fourth ventricle
case_images: SNI-7-492-g003.jpg
case_images: PMC4960921_01_SNI-7-492-g003.jpg
case_images: F3
case_images: A third enhancing mass was diagnosed in fourth ventricle [Figure 3].