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Case of the Week 396




What is the most likely diagnosis?

  • 60 year-old female with hemoptysis



Contrast-enhanced axial and coronal CT scans of chest

  1. Mitral stenosis
  2. Left atrial myxoma
  3. Pulmonary artery pseudoaneurysm
  4. Aortic dissection
  5. Hypoplastic left heart syndrome

Additional Image - Frontal chest radiograph from 3 days earlier

 

 

Additional Images

 

Frontal chest radiograph from 3 days earlier


Answer:

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3. Pulmonary artery pseudoaneurysm

.

.

More (Click Discussion Tab)


Pulmonary artery pseudoaneurysm

General Considerations

  • Rupture of pulmonary artery with Swan Ganz catheter placement reported between 0.05 and 0.4% of cases
  • Overall, major complications with Swan Ganz catheters seen in up to 17% of cases
  • Pseudoaneurysms have a female predominance
  • Causes may include
    • Inflation in a peripheral pulmonary artery
    • Hyperinflation of balloon
    • Vigorous flushing

MORE...


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is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.