Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left pectoral dual - lead pacemaker is unchanged in position with two leads terminating in the right atrium and right ventricle as before . There has been interval removal of a right PICC line from the most recent prior chest radiographs . The inspiratory lung volumes are decreased from the most recent prior study . An opacity at the right lung apex is unchanged . There is no new consolidation , pleural effusion or pneumothorax . The cardiac silhouette is mildly enlarged but stable . The mediastinal contour is unchanged with tortuosity and calcification of the aortic arch .
    OUTPUT:
    
Evolving right apical opacity unchanged from ___ , but increased in conspicuity from ___ . In the clinical context , this may represent a developing pneumonia . A followup chest radiograph is recommended in ___ weeks following an appropriate course of treatment .