Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Marked bilateral alveolar opacities , left greater than right , are new and associated with a small left sided pleural effusion . The opacities on the left reach the periphery . Heart size is top - normal . A catheter is seen lying over the patient . Surgical ___ are seen within the upper abdomen .
    OUTPUT:
    
Bilateral alveolar opacities , left greater than right , most likely asymmetric pulmonary edema but follow up is recommended to exclude other possibilities including aspiration or transfusion related acute lung injury .