Abstract: A case of childhood chronic inflammatory demyelinating
polyneuropathy (CIDP) due to Epstein-Barr virus (EBV) infection is reported. A
15-year-old male presented with CIDP, which initially mimicked
Guillain-Barré syndrome. He subsequently developed major relapses at four
and five months after initial presentation. He recovered six weeks after the
last relapse. Serological studies showed positive Epstein-Barr nuclear antigen
IgG and negative EBV viral capsid antigen IgM. However, EBV deoxyribonucleic
acid was detected by polymerase chain reaction from cerebrospinal fluid,
measuring up to 1000 copies/mL. His CIDP, which ran a relapsing course, could
be explained by reactivation of latent EBV, triggered by other viral illness.
Given patient's full recovery, the mechanism of injury is likely due to
EBV-associated immune-mediated process, rather than from a direct viral
infiltration of the peripheral nerve. This is the first report of a CIDP with
documented EBV infection in cerebrospinal fluid.