Fig. 1From: MRI signal intensity differentiation of brainstem encephalitis induced by Enterovirus 71: a classification approach for acute and convalescence stagesSchematic diagram depicting the location of primary lesion of brainstem encephalitis. The primary lesion is located at the posterior junction region of the pons and medulla oblongata. It is usually presented as an oval shaped fleck, which varies from 1 to 2.5 cm in lengthBack to article page