Subclinical sensory involvement in monomelic amyotrophy.
An 18-year-old woman presented with weakness and atrophy in her hand without associated sensory symptoms, preceding events, or structural abnormalities on neuroimaging. No sensory deficits were detected on neurologic examination. Electrophysiological studies showed not only the expected motor findings for monomelic amyotrophy (MA) in the affected limb, but also markedly reduced sensory nerve action potentials when compared with the unaffected side. These findings suggest that subclinical sensory involvement can exist in patients with otherwise classic presentations of MA.
Liao
Jenny P
JP
From the Department of Neurology, University of Wisconsin Medical School, Madison, WI.
Waclawik
Andrew J
AJ
Lotz
Barend P
BP