Reversible splenial lesion syndrome in patient with acute motor and sensory axonal neuropathy.

Even though the classical clinical concept supports the clear difference between diseases affecting the central and peripheral nervous systems, this difference is becoming less rigid. Here, we report the case of a 50-year-old male patient who presented with acroparaesthesia, headache, and flaccid tetraparesis after febrile diarrhea. Nerve conduction studies indicated action potentials with low amplitudes, which are typical in acute motor and sensory axonal neuropathy. Magnetic resonance revealed a round lesion in the splenium consistent with a diagnosis of reversible splenial lesion syndrome. A polyclonal antiganglioside antibody response was detected. The patient was successfully treated with intravenous immunoglobulins. The coexistence of reversible splenial lesion syndrome and acute motor and sensory axonal neuropathy has not been described in the literature so far. We discuss our diagnostic dilemmas and the possible role of antiganglioside antibodies in the occurrence of simultaneous lesions of the central and peripheral nervous systems.