Omphalocele, X-Linked

Clinical Features

An omphalocele is an abdominal wall defect limited to an open umbilical ring, and is characterized by the herniation of membrane-covered internal organs into the open base of the umbilical cord. Omphalocele is distinguished from gastroschisis (230750), in which the abdominal wall defect is located laterally to a normally closed umbilical ring with herniation of organs that are uncovered by membranes (summary by Bugge, 2010).

Also see 164750 for an autosomal form.

Inheritance

Havalad et al. (1979) described a family with 4 affected males in a pedigree pattern suggestive of X-linked inheritance. Two maternal half brothers and 2 grandsons of 1 of them, through a daughter, were affected.