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Case of the Week 403




What is the most likely diagnosis?

  • Premature newborn with respiratory distress



Chest Radiographs Obtained on Days 2 and 3

  1. Neurenteric cyst
  2. Pericardial cyst
  3. Congenital cystic adenomatoid malformation
  4. Diaphragmatic hernia
  5. Cystic fibrosis

Additional Images - Axial CT scan of chest

 

 

Additional Images

 

Axial CT scan of chest


Answer:

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3. Congenital Cystic Adenomatoid Malformation

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More (Click Discussion Tab)


Congenital Cystic Adenomatoid Malformation

General Considerations

  • Developmental hamartomatous abnormality with cyst production
  • 25% of all congenital lung lesions
  • Communicate with the tracheobronchial tree
  • Usually receives blood supply from pulmonary circulation and drains to pulmonary circulation
    • Types II and II may be associated with extralobar sequestration and receive systemic supply

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.