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EDX Findings in CervicoThoracic Dorsal Arachnoid Cyst
Has anyone had a patient with Cervical Dorsal Arachanoid Cyst and positive EDX changes?
Case is 55 yo 4 years well controlled diabetes, but 8-10 years progressive ataxia. Widespread upper and lower extremity sensory symptoms. MRI shows extradural dorsal arachnoid cyst and cord atrophy over the same segements. NCS in feet looks like sensory motor axonal polyneuropathy but UL SNAPS are all single digits (6-12uV). In theory could be sensory ganglionopathy + diabetic polyneuropathy but I was wondering if the dorsal arachnoid cyst/ cord atrophy could result in low SNAPS (by affecting the DRG?) Has anyone seen these cases and had similar results?
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