Situs Inversus

**Semantic type:** Congenital Abnormality

**Definition:** A congenital condition in which there is complete right-to-left reversal of the position of the major thoracic and abdominal organs (that is, they are arranged in a mirror image of the normal positioning).

**Synonyms:** - SITUS INVERSUS - Situs Ambiguus - Situs Inversus Viscerum - Situs Inversus Viscerum