mercoledì 14 novembre 2007



Fusion of the cerebellar hemispheres with partial absence of the vermis

Diagnosis: Rhombencephalosynapsis

Rhombencephalosynapsis is a unique posterior fossa malformation. The diagnosis is a very uncommon one with ~30 cases in the literature. The patients can present at nearly any age because of the broad range of clinical findings: from normal cognition to severe mental retardation and cerebral palsy. Common associated anomalies include fusion of the dentate nuclei, superior cerebellar peduncles and thalami, absence of septum pellucidum, septo-optic dysplasia, anomalies of limbic system and secondary hydrocephalus.

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