Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild enlargement of cardiac silhouette which is unchanged . Calcification of the aortic knob is re - demonstrated . The mediastinal and hilar contours are otherwise unchanged . No pulmonary vascular congestion is demonstrated . A rounded opacity measuring approximately 1 .9 cm is demonstrated within the right mid to upper lung field , new compared to the previous exam . No focal consolidation , pleural effusion or pneumothorax is otherwise demonstrated . Multilevel degenerative changes are again seen within the thoracic spine .
    OUTPUT:
    
Vague 1 .9 cm rounded opacity identified within the right upper to mid lung field . Further assessment with chest CT is recommended as a neoplastic process can not be excluded . Otherwise , no focal consolidation to suggest pneumonia or evidence of congestive heart failure .