Fig. 3

a Macroscopic view and b microscopic image of the lung. a Pinpoint white, round, and slightly elevated foci are visible, along with a pale grey colour on the lung's surface (arrows). b Marked thickening of interstitial tissue and interalveolar septa, reduction of alveolar space, and variably sized microliths mostly located at the alveolar walls (arrows). HE. Bar 500µm