Fig. 5
From: Magnetic resonance imaging with perfusion and diffusion in assessment of intra-spinal lesions
58-year-old male presented with bilateral lower limb weakness. T2 sagittal dorsal spine (A) shows well defined extradural lesion of isointense signal with intralesional foci of high signal intensity. Pre-contrast T1 (B) and post-contrast T1 (C) show homogenous post-contrast enhancement. D and E rCBV was calculated in comparison to normal cord (yellow curve) and the curve shows hyper perfusion of the lesion (arrow to red curve). DWI at b value = 1000 (F) shows central areas of high signal intensity within lesion. ADC map (G) shows iso- to hyperintense signal of whole lesion (arrow) denoting free diffusion. This lesion was diagnosed as benign extradural schwannoma