“…The pathologic involvement of alveoli (ground glass shadow, GGO), interstitia (interlobular septal thickening, interlobular line, or central lobular shadow), and airways was exhibited by pulmonary imaging results in the youngsters (such as gas retention, bronchial wall thickening, bronchiectasis, or tree bud sign). The most widespread lesions were alveolar (n = 33 [65 %], peak RSI 5 [ [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] ]), followed by interstitial lesions (n = 6 [12 %], peak RSI 2 [ [1] , [2] , [3] ]) and airway lesions (n = 7 [14 %], peak RSI 2 [ [1] , [2] , [3] ]). The GGO was the most common finding (33/51, 65 %); patchy solid shadow (18/51, 35 %); and nodular shadow (15/51, 30 %) were also observed.…”