Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Extensive diffuse bilateral space opacities are worse than on ___ and ___ . Right Port - A - Cath and left PICC are stable given differences in positioning . No pneumothorax . Presumed small bilateral pleural effusions are likely unchanged .
    OUTPUT:
    
Extensive diffuse bilateral air space opacities worse than on ___ and ___ could be due to ARDS , pneumonia , pulmonary edema , or hemorrhage .