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Related Experiment Videos

MRI visualization of the aortic nipple.

M Medrea1, K Meydam, W G Schmitt

  • 1Clinic of Radiology, Marienhospital Lünen, Lünen, West Germany.

Cardiovascular and Interventional Radiology
|January 1, 1988
PubMed
Summary

The aortic nipple, the left superior intercostal vein, can indicate superior vena cava obstruction. Coronal MRI effectively detects this sign in patients with right upper chest masses.

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Area of Science:

  • Thoracic imaging
  • Vascular anatomy
  • Radiology

Background:

  • The aortic nipple is an anatomical variant, often the left superior intercostal vein.
  • It can be mistaken for a pseudotumor adjacent to the aortic arch.
  • Clinical significance lies in its association with venous obstruction.

Purpose of the Study:

  • To evaluate the diagnostic utility of coronal magnetic resonance imaging (MRI) in identifying the aortic nipple.
  • To assess the association between the aortic nipple and superior vena caval syndrome.
  • To determine the value of chest MRI in patients with right upper thoracic masses.

Main Methods:

  • Retrospective review of 40 patients' thoracic imaging studies.
  • Coronal MRI of the thorax was utilized as the primary imaging modality.
  • Correlation of imaging findings with clinical presentation and other imaging methods.

Main Results:

  • The aortic nipple was identified in six out of 40 patients.
  • All patients with an aortic nipple presented with a right upper thoracic mass.
  • Four of these patients exhibited symptoms of superior vena caval syndrome.
  • Coronal MRI demonstrated the aortic nipple superiorly compared to other techniques.

Conclusions:

  • The aortic nipple is a valuable sign of potential superior vena caval or innominate vein obstruction.
  • Coronal MRI of the chest is highly effective in demonstrating the aortic nipple.
  • In patients with right upper chest masses, coronal MR chest examinations are crucial for identifying this sign of impending venous obstruction.

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