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Case of the Week 430




What is the most likely diagnosis?

  • 36 year-old male smoker with shortness of breath



Frontal Chest Radiograph

  1. Asthma
  2. Lymphangiomyomatosis
  3. Eosinophilic granuloma
  4. Metastatic osteosarcoma
  5. Chronic bronchitis

Additional Image - Axial CT scan of Upper Lobes

 

 

Additional Images

 

Axial CT scan of Upper Lobes


Answer:

.


3. Eosinophilic granuloma

.

.

More (Click Discussion Tab)


Eosinophilic Granuloma

General Considerations

  • Upper lobe predominance in lung
  • Small nodules which may contain cavities
  • Cystic lesions of varying size, first thick walled, then thinner
  • 25% pneumothorax

 

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.