HRCT chest
HRCT of the lungs plain contiguous MDCT scan of the lungs were performed by using 1.25 mm. collirnition and every 10 mm intervals during inspiratiory and expiatory phase in supine position Addition inspiratory phase on prone postion was performed
diffuse bllareally symmetric ground glass opacities and smooth thickening of interlobular septal ling giving the crazy paving patterr which is slight lower lobe predilection