Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right apical pneumothorax is present . Cardiac and mediastinal contours are unchanged . Heart size is difficult to assess given the presence of a moderate size right pleural effusion . Right basilar opacity may reflect a combination of known tumor and atelectasis . No pulmonary vascular engorgement is demonstrated . Left lung is grossly clear . Emphysematous changes are again demonstrated within the upper lobes . No acute osseous abnormalities identified . Spiral tacks from prior hernia repair are seen within the left upper quadrant of the abdomen .
    OUTPUT:
    
1 . Small right apical pneumothorax . 2 . Moderate right pleural effusion . Right basilar opacity may reflect a combination of known tumor and atelectasis . Infection is not excluded .