Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Relative linear right basilar opacity is most suggestive of atelectasis . Elsewhere , the lungs are clear . Cardiomediastinal silhouette is within normal limits . Right humeral head is relatively inferiorly positioned with respect to the glenoid as seen on recent shoulder films .
    OUTPUT:
    
No acute cardiopulmonary process .