Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates lung volumes which are significantly decreased from prior radiograph . There is no definite pulmonary edema , and diffusely increased opacity may be secondary to vascular crowding . Bibasilar opacities may represent atelectasis and probable bilateral pleural effusions . There is no pneumothorax .
    OUTPUT:
    
Decreased lung volumes result in vascular crowding , without definite pulmonary edema . Bibasilar opacities likely represent a combination of bilateral pleural effusions and atelectasis . These findings were discussed via telephone by Dr . ___ with Dr . ___ at approximately ___ and ___ on ___ .