Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal chest radiographs demonstrate sternal wires , as well as pacer leads projecting over the right heart border . Opacity in the upper right lung with rightward shift of the upper mediastinum consistent with volume loss . Flattened hemidiaphragms are consistent with hyperinflation . No focal consolidation or large pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Opacity in the right upper lung with rightward shift of the upper mediastinum consistent with volume loss . The differential includes upper lobe collapse , fibrosis , and tuberculosis .