Clinical and radiologic findings in a child with acute motor axonal ne
uropathy are reported. A 16-year-old boy with mild cerebral palsy pres
ented 1 week after an upper respiratory tract infection with low back
pain, ascending weakness, and areflexia. Cerebrospinal fluid (CSF) exa
mination revealed albuminocytological dissociation. Serial electromyog
rams (EMGs) with nerve conduction velocity (NCV) studies revealed find
ings of motor axonal neuropathy. Spine MRI revealed enhancement of the
cauda equina. Acute motor axonal neuropathy (AMAN) may be an underrec
ognized cause of acute flaccid paralysis, and to our knowledge no pedi
atric cases have been reported in the United States. MRI findings have
not been reported previously. (C) 1997 by Elsevier Science Inc.