Reye's syndrome is a rare but serious condition that causes swelling in the liver and brain. In Reye's syndrome, a child's blood sugar usually drops while levels of ammonia and acidity in the blood rises. The liver also may swell, and fats may build up. Swelling may occur in the brain. This can cause seizures, convulsions or loss of consciousness. Molecular genetic testing can help in identification of the syndrome. #reyesyndrome #raredisorder #earlysignsandsymptoms #geneticmetabolicdisorder #moleculargenetictesting