Dorsal exophytic medullary ganglioglioma, BRAFV600E-mutant

Dorsal medullary ganglioglioma. Post-contrast axial (A) and sagittal (B) T1-weighted images and sagittal T2-weighted image (C) show a 2.4 × 2.5 cm solid and cystic, T2-hyperintense, enhancing mass lesion centered in the dorsal medulla (arrows).