Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An accessed right pectoral MediPort terminates at the superior cavoatrial junction . There is no pneumothorax . Mild prominence with increased density of the right hilus as compared to ___ may be due to mild pulmonary artery dilatation or lymphadenopathy . A faint nodular opacity projecting at the superior aspect of the left hilus may be a small nodule . Moderate cardiomegaly despite the projection is unchanged . Background parenchymal changes consistent with emphysema are unchanged .
    OUTPUT:
    
Nodular opacity at the superior aspect of the left hilus may be pulmonary nodule . Stable emphysema . New mild prominence of the right pulmonary artery may be due to pulmonary arterial dilatation or lymphadenopathy .