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Mirror image arrangement of the abdominal organs with a left-sided morphologically normal heart

L V Sacks1, I R Rifkin

  • 1Department of Internal Medicine, One Military Hospital, Voortrekkerhoogte, South Africa.

British Heart Journal
|November 1, 1987
PubMed

Insights

This case study highlights anatomical variations, including left-sided liver and spleen, and an abnormal vena cava. It demonstrates that other situs abnormalities do not reliably predict cardiac defects.

Area of Science:

  • Anatomical Situs and Congenital Variations
  • Cardiology and Cardiovascular Anomalies
  • Medical Case Studies

Background:

  • Understanding anatomical situs (the normal arrangement of visceral organs) is crucial in diagnosing congenital abnormalities.
  • Variations in situs can involve the liver, spleen, and major blood vessels, often presenting complex diagnostic challenges.
  • The relationship between extrathoracic situs abnormalities and cardiac malformations requires careful consideration.

Observation:

  • A 20-year-old male presented with a rare combination of anatomical variations.
  • Observed anomalies included a left-sided liver, a single right-sided spleen, and an anomalous inferior vena cava with azygos continuation.
  • Notably, the patient had a morphologically normal left-sided heart.

Findings:

  • The constellation of visceral and vascular situs anomalies in this case was unusual.
  • The presence of these extrathoracic variations did not correlate with cardiac morphology.
  • This case underscores the unpredictability of cardiac status based solely on other situs aberrations.

Implications:

  • Clinicians must be aware that extrathoracic situs anomalies can occur independently of cardiac defects.
  • Relying on visceral situs to predict cardiac abnormalities can lead to diagnostic pitfalls.
  • Comprehensive imaging and clinical evaluation are essential for accurate diagnosis in cases of complex anatomical variations.

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