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← Disease database

port-wine nevi-mega cisterna magna-hydrocephalus syndrome

A rare developmental defect during embryogenesis syndrome characterized by a glabellar capillary malformation, congenital communicating hydrocephalus, and posterior fossa brain abnormalities, including Dandy-Walker malformation, cerebellar vermis agenesis, and mega cisterna magna. Seizures are occasionally associated. There have been no further descriptions in the literature since 1979.

Therapeutic area
Rare Disease
Rarity
Rare
Prevalence
~100k patients (est.)
MONDO
MONDO:0100367

Overview

A rare developmental defect during embryogenesis syndrome characterized by a glabellar capillary malformation, congenital communicating hydrocephalus, and posterior fossa brain abnormalities, including Dandy-Walker malformation, cerebellar vermis agenesis, and mega cisterna magna. Seizures are occasionally associated. There have been no further descriptions in the literature since 1979.

Content last reviewed: 2026-06