Symptomatic arachnoid diverticula might be a commoner cause of obscure myelopathy and pain than has previously been considered. Supine myelography is important in diagnosing this benign, curable condition.
Kim JH, Shucart WA, Haimovici H. Symptomatic Arachnoid Diverticula. Arch Neurol. 1974;31(1):35–37. doi:10.1001/archneur.1974.00490370061009
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