CHRONIC RELAPSING MULTIFOCAL SENSORY-MOTOR NEUROPATHY WITH CONDUCTIONBLOCK

A 47 years old man had 13 episodes of relapsing and remitting sensory- motor neuropathy involving the upper limbs over the last 20 years. All but the last episode resolved spontaneously within 2 months. Neurophy siology revealed multifocal motor and sensory conduction block in the upper; limbs with normal terminal latencies. CSF analysis was normal a nd anti-GM1 antibodies were not detected. There was a dramatic clinica l improvement after intravenous immunoglobulin treatment. This case re presents an unusual multifocal variant of chronic inflammatory demyeli nating neuropathy.