Split mesencephalon: Diplomyelia of the basicranium

Abstract

We report a novel case of congenitally split mesencephalon, in a 3-year old with hydrocephalus. We speculate that the ontogenetic mechanism is shared with split cord malformations (SCM). Our case adds to the two other cases of basicranial SCM which involved more caudal brainstem.

Keywords::

• anomaly
• cyst
• diplomyelia
• mesencephalon
• posterior fossa
• split cord malformation

Declaration of interest: The authors report no declarations of interest. The authors alone are responsible for the content and writing of the paper.