Transitional lumbosacral anatomy with lumbarisation of S1 (proven with whole spine localisers, not shown). Scattered vertebral haemangiomas. Right S1 pars interarticularis defect and spinous process cleft. No bone marrow oedema.
L2-3: Left foraminal zone disc extrusion results in severe left neural exit foraminal stenosis with compression of the exiting left L2 nerve root. Central canal and neural exit foramina are capacious.