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Encephalocele

An encephalocele is a rare congenital (present at birth) type of neural tube defect where part of the skull has not formed properly so a portion of brain tissue and associated structures are outside the skull. The protruding sac may be covered with skin or it may be covered with a thin membrane. This information sheet from Great Ormond Street Hospital (GOSH) explains the causes, symptoms and treatment of encephalocele and where to get help.