Spinal Nerve Root Haemangioblastoma Associated with Reactive Polycythemia

Figure 7

Comparison of the preoperative (a) and postoperative (b) T2W MR image at the L4 vertebral body level, demonstrating a reduction in tumour size (curved arrow) after partial tumour resection. In particular, the invasion into the psoas muscle (open arrow) is less.

(a)

(b)