Mild encephalitis/encephalopathy with a reversible splenial lesion complicated by acute urinary retention in a 2-year-old boy

Abstract

  Mild encephalitis/encephalopathy with a reversible splenial lesion (MERS) is one of the most frequent acute encephalopathies in Japanese children, and presents with abnormal speech and behavior, impaired consciousness, and convulsions. Most cases of MERS recover without neurological sequelae. We experienced a 2-year-old boy who was diagnosed with MERS following urinary retention, and recovered without neurological sequelae spontaneously. The combination of MERS and acute urinary retention is rare. The pathological condition was considered based on the physiological test results.