In the images on your left you can appreciate again the spectrum of findings seen in NSIP. All three patients were suffering from connective tissue disease, all cases were biopsy proven. The first (top left) shows a very subtle GGO. Note the difference in the density of the air within the bronchus and surrounding lungparenchyma (dark bronchus sign). The second (top right) is a more obvious example of GGO with a superimposed fine reticular densities as a result of thickening of the intralobular septa. The last image also shows GGO with a fine reticular pattern. Notice the lack of honeycombing in all three cases, excluding UIP as diagnosis. #Clinical #Radiology #CTChest #NSIP #NonspecificInterstitialPneumonia #ILD #RadiologyAssistant
