2021 Volume 37 Issue 1 Pages 113-118
A 1-year-old girl convulsed and was diagnosed with simple febrile seizure at another hospital on the second day of fever. Day 3 of fever, she was diagnosed as having KD based on the presence of 6 out of 6 criteria at our hospital and was hospitalized and treated with intravenous immune globulin (IVIG) and oral aspirin. She had convulsions twice that night. On the 4th day, she exhibited a persistent disturbance of consciousness and was diagnosed as having MERS type 2 based on the presence of enhanced signals in the splenium of the corpus callosum and cerebral cortex in her diffusion-weighted brain MRI. The treatment with IVIG for KD and pulsed methylprednisolone for MERS type 2 was started because her consciousness had deteriorated. Afterwards her consciousness improved and there were no sequelae. We should be careful that even if a child is diagnosed with febrile seizure at some point, it may be encephalitis/encephalopathy in KD later.
