Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large right upper lobe mass is unchanged in appearance . Peripheral and basal predominant interstitial markings are similar compared to the prior examination . No new focal consolidation is seen . Heart size and cardiomediastinal silhouettes are unchanged . A right - sided dual chamber pacemaker is noted with leads terminating in the right atrium and right ventricle . The superior - most median sternotomy wire is fractured , unchanged . Mediastinal clips and an aortic valve replacement are also noted . Mild anterior wedging at multiple levels in the upper thoracic spine is unchanged compared to the prior examination .
    OUTPUT:
    
A right upper lobe mass and pulmonary fibrosis are similar compared to approximately 2 .5 weeks prior . No definite focal consolidation to suggest pneumonia .