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Situs inversus

Other Names for this Disease
  • Situs inversus viscerum
  • SIV
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Situs inversus is a condition in which the internal organs of the abdomen (stomach) and thorax (chest) lie in mirror image of their normal body position. It can occur alone, without any other anomalies, or it can be  a part of a syndrome with various other defects. Situs inversus has been inherited in different ways in different families. Autosomal dominant, autosomal recessive, and X-linked inheritance have been reported. Treatment, when needed, is symptomatic and supportive.[1]
Last updated: 7/19/2010


  1. Tiller GE, Hamid R . Situs Inversus. NORD Guide to Rare Disorders. 2003;
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  • Medscape Reference has information on situs inversus. You may need to register to view this medical reference, but registration is free.
  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Situs inversus. Click on the link to view a sample search on this topic.