Diseases

Situs Inversus

A congenital abnormality in which organs in the THORAX and the ABDOMEN are opposite to their normal positions (situs solitus) due to lateral transposition. Normally the STOMACH and SPLEEN are on the left, LIVER on the right, the three-lobed right lung is on the right, and the two-lobed left lung on the left. Situs inversus has a familial pattern and has been associated with a number of genes related to microtubule-associated proteins.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A congenital abnormality in which organs in the THORAX and the ABDOMEN are opposite to their normal positions (situs solitus) due to lateral transposition. Normally the STOMACH and SPLEEN are on the left, LIVER on the right, the three-lobed right lung is on the right, and the two-lobed left lung on the left. Situs inversus has a familial pattern and has been associated with a number of genes related to microtubule-associated proteins.

MeSH Record

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MeSH Record

Synonyms

2 entry terms
  • Situs Inversus Viscerum
  • Inversus, Situs

MeSH Record

Aspects Covered

34 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Hierarchy

Tree Number

  1. C16w.131w.810w

AMA Style

References

  1. National Library of Medicine. Situs Inversus. Medical Subject Headings (MeSH). 2026. Unique ID D012857. http://id.nlm.nih.gov/mesh/2026/D012857
  2. Situs Inversus. In: Wikipedia. https://en.wikipedia.org/wiki/Situs_inversus
  3. Situs Inversus. In: Wikidata. https://www.wikidata.org/wiki/Q1456383