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Kawasaki disease-associated MERS: pathological insights from SPECT findings
Tatsuharu Sato1, Yoko Ushiroda, Toshifumi Oyama
1Department of Pediatrics, Nagasaki University Hospital, Nagasaki, Japan. satoharu0430@hotmail.com
Abstract:
We report for the first time the single photon emission computed tomography (SPECT) findings of a patient with clinically mild encephalitis/encephalopathy with a reversible splenial lesion (MERS) associated with Kawasaki disease, which showed hypoperfusion of the bilateral cingulate gyri, thalamus, basal ganglia, brainstem, and cortex of the frontal lobes. These findings indicate that the pathogenesis of MERS is based on cerebral hypoperfusion due to vasculitis or cerebrovascular dehydration.
Insights
Single photon emission computed tomography (SPECT) revealed cerebral hypoperfusion in a patient with mild encephalitis/encephalopathy with a reversible splenial lesion (MERS) linked to Kawasaki disease. This suggests vasculitis or dehydration causes MERS brain changes.
Area of Science:
- Neurology
- Radiology
- Pediatrics
Background:
- Kawasaki disease is a pediatric illness that can affect blood vessels.
- Encephalopathy with a reversible splenial lesion (MERS) is a rare neurological complication.
- The neuroimaging findings in MERS associated with Kawasaki disease are not well-documented.
Observation:
- This study presents the first single photon emission computed tomography (SPECT) findings in a patient with MERS associated with Kawasaki disease.
- The patient exhibited clinically mild encephalitis/encephalopathy with a reversible splenial lesion.
- SPECT imaging revealed hypoperfusion in specific brain regions.
Findings:
- SPECT demonstrated hypoperfusion in the bilateral cingulate gyri, thalamus, basal ganglia, brainstem, and frontal lobe cortex.
- These areas are critical for various neurological functions.
- The observed hypoperfusion pattern provides insights into the underlying pathophysiology.
Implications:
- The findings suggest that cerebral hypoperfusion, potentially due to vasculitis or cerebrovascular dehydration, is the primary mechanism in MERS associated with Kawasaki disease.
- This understanding may guide future diagnostic and therapeutic strategies for MERS.
- Further research is warranted to confirm these findings in a larger cohort.
