Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Within the posterior aspect of the superior segment of the right lower lobe there is a 3 .5 x 2 .5 cm rounded opacity which is new from ___ . There is no pleural effusion or pneumothorax . The main pulmonary arteries remain enlarged , consistent with pulmonary arterial hypertension . A calcified aorta is unchanged . The cardiac silhouette is normal in size .
    OUTPUT:
    
3 .5 cm rounded opacity within the superior segment of the right lower lobe could be a lung mass such as bronchogenic carcinoma or lung abscess . Further evaluation with cross - sectional imaging is recommended . These findings were discussed with Dr . ___ by Dr . ___ on ___ at 15 : 40 by telephone ___ minutes after discovery .