ARDS on chest X-ray: stages

Acquired respiratory distress syndrome on chest radiograph

Stage Description
I. Perihilous streaky opacities, incipient interstitial edema
II. Diffuse, more or less homogeneous opacities, event. batwing appearance
III. Increased opacity of shadows due to edema of bronchial wall, event. bronchogram sign
IV. Confluent shadows of increasing size
V. Large dense bilateral shadows

References:

VYHNÁNEK, L. et al.: Radiodiagnostika, kapitoly z klinické praxe. Grada, Prague.