Spinal Nerve Root Haemangioblastoma Associated with Reactive Polycythemia

Figure 2

Axial CT image (a) at L4 shows bone erosion (dashed arrow), sclerosis (white arrow), and widening of the exit foramina (open arrow). Volume rendered three-dimensional coronal image (b) demonstrates the focal erosion at the transverse process (white arrow) and anterolateral osseous bridging between the L3 and L4 vertebral bodies (dashed arrow).

(a)

(b)