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Case of the Week 421



What is the most likely diagnosis?

  • 41 year-old male with shortness of breath



Frontal Chest Radiograph

  1. Large pneumothorax
  2. Pulmonary embolism
  3. Poland Syndrome
  4. Vanishing Lung Syndrome
  5. Unilateral pulmonary edema

Additional Images - CT scan of chest

 

 

Additional Images

 

CT scan of chest


Answer:

.


4. Vanishing Lung Syndrome

.

.

More (Click Discussion Tab)


Vanishing Lung Syndrome

General Considerations

  • Uncommon disorder
  • Characterized by very large bullae
    • Bullae are air-filled, thin-walled (<1mm) spaces in the lung resulting from destruction of alveolar tissue
    • In vanishing lung syndrome the bulla takes up more than a third of the occupied lung
  • Paraseptal emphysema and subpleural bullae are seen in virtually all patients
    • Most also have separate centrilobular emphysema
  • Most common in young men, mostly in smokers

MORE...


.

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LearningRadiology.com
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.