OEIS Complex

**Semantic type:** Congenital Abnormality

**Definition:** A rare combination of congenital abnormalities that includes omphalocele, cloacal exstrophy, imperforate anus, and spine abnormalities.

**Synonyms:** - Cloacal Exstrophy - OEIS Syndrome - Omphalocele-Exstrophy-Imperforate Anus-Spinal Defects