Situs inversus

Situs inversus, short form of the Latin “situs inversus viscerum”, is a term used to describe the inverted position of chest and abdominal organs. It is called situs inversus totalis when there is a total transposition of abdominal and thoracic viscera (mirror image of internal organs normal positioning).

Situs inversus is usually associated with dextrocardia (true mirror image) with only 3-5% incidence of congenital heart disease, most commonly transposition of the great vessels. Of these patients, 80% have a right-sided aortic arch. Situs inversus with levocardia (which is much rarer: 0.00005%) congenital heart disease is found in 95% of patients 4.

Up to 20% of patients with situs inversus can have Kartagener syndrome 3 which comprises a subgroup of primary ciliary dyskinesia.

Imaging features on chest radiograph to be evaluated are:

  • location of heart apex
  • location of aortic arch
  • location of stomach bubble / liver
Share article

Article information

rID: 2054
System: Vascular, Chest
Section: Anatomy, Approach
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

Cases and figures

  • Case 1: chest radiograph
    Drag here to reorder.
  • Case 2
    Drag here to reorder.
  • Case 3: ultrasound
    Drag here to reorder.
  • Case 4: CT
    Drag here to reorder.
  • Truncus arteriosu...
    Case 5: with concurrent congenital cardiac anomaly
    Drag here to reorder.
  • PA
    Case 6: with Kartagener syndrome
    Drag here to reorder.
  • Case 7
    Drag here to reorder.
  • Case 8
    Drag here to reorder.
  • Case 9
    Drag here to reorder.
  • Case 11
    Drag here to reorder.
  • Case 10
    Drag here to reorder.
  • Case 12
    Drag here to reorder.
  • Case 13
    Drag here to reorder.
  • Case 14
    Drag here to reorder.
  •  Case 15
    Drag here to reorder.
  • Case 16
    Drag here to reorder.
  • Case 17: situs inversus totalis
    Drag here to reorder.
  • Case 18
    Drag here to reorder.
  • Case 19: with gallstone ileus
    Drag here to reorder.
  • Case 20: situs inversus totalis with left azygos fissure
    Drag here to reorder.
  • Case 21: swallowed coin foreign body with situs inversus
    Drag here to reorder.
  • Case 22
    Drag here to reorder.
  • Case 23
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.