Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided dual - chamber pacemaker device is noted with leads terminating in the right atrium and right ventricle . The heart is mildly enlarged but unchanged . The aorta is tortuous with calcifications noted at the aortic knob . The pulmonary vasculature is not engorged . Patchy opacities are seen within the right upper lobe as well as in both lung bases , new compared to the previous exam and concerning for areas of multifocal infection . No pleural effusion or pneumothorax is seen . There is diffuse demineralization of the osseous structures . A left humeral head prosthesis is partially imaged .
    OUTPUT:
    
Patchy opacities in the right upper lobe as well as both lung bases concerning for multifocal pneumonia .