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I want to know what is the difference between alveolar and interstitial infiltrates in lung?

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In brief: Airspace vs tissue

Alveoli are microscopic air sacs in the lungs in which gas exchange happens.
These are tiny thin walled structures that represent the smallest division of the lung tissue. Interstitium is the connective tissue between / around air exchange sacs. Infiltrates of cells in the alveoli are within air sacs proper. Infiltrates of cells in the interstitium are between / around the tiny air sacs.

In brief: Airspace vs tissue

Alveoli are microscopic air sacs in the lungs in which gas exchange happens.
These are tiny thin walled structures that represent the smallest division of the lung tissue. Interstitium is the connective tissue between / around air exchange sacs. Infiltrates of cells in the alveoli are within air sacs proper. Infiltrates of cells in the interstitium are between / around the tiny air sacs.
Dr. Charles Sturgis
Dr. Charles Sturgis
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