Hypoglycemic encephalopathy as a result of an attempted suicide.

n CSF flow dynamics at the level of foramen magnum have been he final pathway related to the development of syringomyelia 5]. Syingomyelia in association with posterior fossa cyst has been scribed to the obstruction at the level of foramen of magnum ither due to the cyst per se or due to the secondary herniation f the cerebellar tonsils [5,6]. Decompression of the cyst with elieving of pressure by syringostomy, terminal ventriculostomy, ysto-peritoneal shunt and endoscopic fenestration results in esolution of this block and restoration of the CSF pathways. Spinal screening shouldbeperformed inpatientswith largeposerior fossa cysts to rule out an overt underlying syringomyelia as on-resolution of the same may be the source of persisting sympomatology after successful decompression of the posterior fossa yst.