Cerebellar slump following removal of haematoma: a manifestation of hydrocephalus?

Cerebellar slump is a rarely reported complication of craniocervical decompression for Chiari malformation. This is known to occur following an oversized bony decompression of the cranio-vertebral junction. The index case is the first reported which developed this phenomenon following cerebellar hemispheric haematoma removal. Disturbance of CSF circulation in the presence of a calvarial defect may have been the cause. The patient was treated with a titanium mesh cranioplasty of the posterior cranial defect, followed by a ventriculo-peritoneal shunt.