Laparoscopic appendicectomy in a patient with situs inversus totalis.

Situs inversus totalis (SIT) is a rare condition with a genetic predisposition, wherein organs or organ systems are transposed from their normal sites to locations on the opposite side of the body (the mirror image of normal). The syndrome may include transposition of the thoracic viscera, the abdominal viscera, or more commonly, both. The incidence has been calculated variously as 1 in 6,000-35,000 live births.