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What do you see on the CXR to help explain the patient's hypoxemia?
A CT scan was obtained and here are the images:


What is the predominant imaging abnormality?
All of these features are present. What is strikingly prominent is the reticulation and septal thickening. With this we always want to think about the lung lobule and its features:
In addition to underlying parenchymal disease, what other abnormality do you see?
2/ On reviewing the CXR there is concern for lobar collapse in the ________ lobe
You are concerned for diffuse alveolar infiltrates on chest x-ray and you obtain a CT chest for better parenchymal visualization. How would you best describe the imaging findings on CT chest?