Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is within normal limits . Increased density at the right cardiophrenic angle likely represents an epicardial fat pad as seen on the upper images from the abdominopelvic CT performed on the same day . The mediastinal contours and hilar contours are normal . The lungs are clear . There is no large pleural effusion . There is no large pneumothorax , although there is subtly increased lucency at the right apex with no clear pleural line or pulmonary parenchymal markings ; these findings may represent focally hyperextended apical lung versus apical pleural fat versus a small apical pneumothorax . No displaced rib fractures are evident .
    OUTPUT:
    
Right apical lucency equivocal for pneumothorax - an expiratory chest radiograph or CT may be considered for further characterization .