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Arch Phys Med Rehabil. 2004 Jun;85(6):1021-5.

An instance of an atypical intraspinal cyst presenting as S1 radiculopathy: a case report and brief review of pathophysiology.

Author information

1
Department of Physical Medicine and Rehabilitation, The University of Pennsylvania, Philadelphia, PA, USA. depalmamj8@yahoo.com

Abstract

Intraspinal cysts are rare, but typically they originate from a degenerate zygapophyseal joint. These cysts have been commonly referred to as juxtafacet cysts and occur concomitantly with lumbar and occasionally lower-limb radicular pain. Documented cases have shown pseudoarthroses developing from nonhealing pars defects. Histologic analyses have found synovial tissue within these fibrocartilaginous accumulations. We present a case of S1 radiculopathy indicated by an intraspinal pseudocyst arising as a complication of a chronic spondylolytic defect. A brief review of the related pathophysiology is also included.

PMID:
15179661
DOI:
10.1016/j.apmr.2003.09.017
[Indexed for MEDLINE]

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