Brainstem folding in an influenza child with Dandy-Walker variant

Figure 1 Dandy-Walker variant and pontocerebellar hypoplasia showed in the patient’s first magnetic resonance imaging. Sagittal T1WI magnetic resonance imaging showed posterior fossa cystic lesions, cyst-like dilatation of the fourth ventricle and communication with the cistern magnum (blue arrow), and hypoplasia of the inferior vermis of the cerebellum. The developed superior vermis was elevated upwardly and rotated by posterior fossa cystic lesions (yellow arrow) and caused the death. The pons was smaller, and the medulla was not compressed (white arrow). Axial T2WI magnetic resonance imaging showed that most of the posterior fossa was occupied by cystic lesions (blue arrow), the cyst had a large volume, the superior vermis was compressed upward, and the pons and medulla were not compressed (white arrow).