Spinous Process Osteochondroma as a Rare Cause of Lumbar Pain

Figure 2

(a) Intraoperative picture showing a lumbar spine midline approach, exposing the tumor in situ in contiguous to the spinous process of L5 causing adjacent left paraspinal muscular compression. (b) Intraoperative picture of the resected tumor with an approximately 7 cm axis-length.

(a)

(b)