Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed . Compared to the most recent study , there has been slight interval decrease in a small right pleural effusion . Linear opacities in the left lower lobe likely represents atelectasis ; otherwise , lungs are clear without focal consolidation , pulmonary edema , pleural effusion or pneumothorax . Normal cardiac and mediastinal contours . A left - sided Port - A - Cath ends in the mid-to - distal superior vena cava . There are no concerning osseous or soft tissue lesions .
    OUTPUT:
    
Slight interval decrease in small right - sided pleural effusion .