====== Extreme lateral lumbar disc herniation classification ======

[[Foraminal lumbar disc herniation]]: [[Lumbar disc herniation]] at the [[lumbar intervertebral foramen]], considered for some authors a type of [[extreme lateral lumbar disc herniation]]

[[Extraforaminal lumbar disc herniation]]: Lumbar disc herniation distal to the lumbar intervertebral foramen, considered for some authors a type of [[extreme lateral lumbar disc herniation]]

The term ‘far lateral’ applies to [[prolapse]] of a [[lumbar disc]] which compresses the [[nerve root]] at the same level 
((Abdullah AF, Ditton EW III, Byrd EB, et al. Extreme-lateral lumbar disc herniations: clinical syndrome and special problems of diagnosis. J Neurosurg 1974;41:229-34.))
irrespective of whether it is in the [[intervertebral canal]], at the foramen or further laterally. 

[[Far lateral lumbar disc herniation]]s (FLLDHs) can cause difficulty and differences in diagnosis and treatment compared with intraspinal herniation.