Fig. 2
From: Imaging algorithm and multimodality evaluation of spinal osteoblastoma
Osteoblastoma in a 29-year-old male, Enneking stage 2 on CT and stage 3 on MRI. a Axial CT bone window shows expansile bone destruction in the left lamina of L7 with a clear sclerotic rim and speckled calcifications. Note sclerotic changes (arrows) in the surrounding areas. Axial MRI T2WI (b), T1WI (c), and contrast-enhanced T1WI (d) show a soft tissue mass in the epidural space (arrowheads)