Fig. 1

Radiological features of DLGNT on sagittal, T2-weighted images (a, c), T1 post-gadolinium imaged (b, d) and histopathological features of DLGNT (e, f, g): Radiology demonstrating a intramedullary C1-2 and T7-9 lesions. b ‘sugar coating’ leptomeningeal spread with nodular disease at cavernous sinus. c Intramedullary C2-T1 lesion with solid and cystic components. d ‘sugar coating’ leptomeningeal spread. Pathology of intramedullary tumour of case 2 demonstrating e. high power of H&E sections (400×) of dysplastic ganglionic type neurons with admixed neoplastic glial cells, f Neu-N positive dysplastic ganglionic type neurons, g diffuse positive staining of GFAP