Fig. 2
From: Lumbar round cell sarcoma in a 10-week-old rottweiler puppy
Magnetic resonance imaging findings of the lumbar spine. Transverse T2-weighted image at the level of the L4 vertebra (a) and dorsal T1-weighted image on the level of the spinal cord pre-contrast (b) and post gadolinium contrast (c) showing a confirmed extradural mass encompassing the left pedicle of L4. The mass appears hyperintense on T2-weighted sequences (a), isointense to the spinal cord on T1-weighted sequences (b), and moderately, heterogeneously contrast enhancing with meningeal enhancement “dural-tail”-sign (c). The mass extends into the vertebral canal (white arrows) and left dorsolateral (white arrowheads). The mass displaces and compresses the spinal cord towards the right (asterisk)