Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Re-identified is a right chest cardiac device with associated dual leads projecting in stable position overlying the right atrium and ventricle , in grossly appropriate location . The cardiomediastinal silhouettes are stable , reflective of a mildly tortuous thoracic aorta . There are low lung volumes . Increased opacity at the right mid lung may reflect crowding of bronchovascular structures in the setting of low lung volumes , however developing infection in the right middle lobe may give this appearance . Elsewhere , there is no focal lung consolidation . There is no pulmonary vascular congestion or pulmonary edema . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Right mid lung opacity may reflect early / developing pneumonia versus crowding of bronchovascular structures . Attention on follow - up radiographs . No pulmonary edema .