Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . There has been interval resolution of the previously seen left - sided pleural effusion . Small right - sided pleural effusion persists . Somewhat linear left basilar opacity , new from prior , may be due to atelectasis ; however , possibility of infection is not excluded . Cardiomediastinal silhouette is within normal limits . Calcified mediastinal nodes are identified on the right . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Resolution of previously seen left - sided pleural effusion . Left basilar likely atelectasis noting that early pneumonia can not entirely be excluded .