Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased density at the left lung base , which likely represents a combination of consolidation and possibly pleural effusion , perhaps loculated but small if it were to be confirmed . Findings are concerning for aspiration or pneumonia given the clinical history . There is mild to moderate interstitial abnormality consistent with interstitial pulmonary edema . No pneumothorax is evident . Mediastinal and hilar contours are within normal limits . Evaluation of the cardiac silhouette is limited due to the basilar opacity .
    OUTPUT:
    
1 . Left basilar opacity , probably in the left lower lobe , suggesting pneumonia , atelectasis or potentially aspiration ; potentially with loculated pleural effusion but not well delineated . 2 . Mild to moderate interstitial pulmonary edema . Follow - up standard PA and lateral radiographs are recommended after treatment of edema , if applicable , to assess left basilar opacification further if clinically indicated .