Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to ___ , there is new patchy opacity diffusely distributed in bilateral lungs with peripheral sparing . Differential includes pulmonary edema , ARDS and multifocal pneumonia . There is probable underlying fibrotic changes of the lung parenchyma . Blunting of the right costophrenic angle suggests at least small right effusion . No pneumothorax . Cardiomediastinal silhouette is within normal size .
    OUTPUT:
    
Compared to ___ , there is new patchy opacity diffusely distributed in bilateral lungs . Differential includes pulmonary edema , ARDS and multifocal pneumonia .