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Title: Anterior dural ectasia mimicking a lytic lesion in the posterior vertebral body in ankylosing spondylitis
Authors: Bele, Keerthiraj
Pendharkar, Hima Shriniwas
Venkat, Easwer
Gupta, Arun Kumar
Keywords: Neurology
Issue Date: 2011
Citation: JOURNAL OF NEUROSURGERY-SPINE. 15; 6; 636-640
Abstract: Anterior dural ectasia is an extremely rare finding in ankylosing spondylitis (AS). The authors describe a unique case of AS in which the patient presented with cauda equina syndrome as well as an unusual imaging finding of erosion of the posterior aspect of the L-1 (predominantly) and L-2 vertebral bodies due to anterior dural ectasia. Symptomatic patients with long-standing AS should be monitored for the presence of dural ectasia, which can be anterior in location, as is demonstrated in the present case. (DOI: 10.3171/2011.8.SPINE1142)
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