Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are even lower on the current examination as compared to recent prior . Bilateral basilar airspace opacities persist . Allowing for differences in technique and lower lung volumes , the overall severity and distribution of the opacities appear similar . There is a probable residual small left pleural effusion as well . No right effusion is seen . Interstitial prominence may be related to mild superimposed edema or possibly due to bronchovascular crowding due to low lung volumes . Cardiomediastinal contours are similar to prior and within normal limits . No pneumothorax is evident .
    OUTPUT:
    
Lower lung volumes with persistent bibasilar opacities , likely similar to prior examination allowing for differences in technique and related to aspiration events . Assessment for interval development of new consolidation is difficult due to low lung volumes and AP technique . If there is ongoing clinical concern , dedicated PA and lateral chest radiographs should be considered when the patient is clinically able .