Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . Lower lung volumes seen on the current exam . The right lung is grossly clear . There is , however , new left basilar opacities , some of which is due to likely partially loculated left - sided pleural effusion , both laterally and posteriorly . Underlying consolidation and / or atelectasis is also seen . Cardiomediastinal silhouette is within normal limits . Old posterior left ninth and lateral left eighth rib fractures are identified .
    OUTPUT:
    
New left base opacities , which in part likely represent loculated effusions , both posteriorly and laterally with underlying infection and possibly atelectasis . Consider CT scan for further delineation .