Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . Evaluation limited given the low lung volumes . Surgical clips noted in the left upper quadrant . There is a pleural - based opacity in the right mid lung with a convex contour which could represent a pleural - based nodule or loculated fluid . There is a vague opacity in the left upper lung on the frontal view , which is new from prior exam and is of unclear etiology . Mild pulmonary vascular congestion is evident . The heart is top normal in size , with curvilinear calcification projecting over the left heart , likely representing calcified mitral annulus . There is densely calcified aortic arch . The mediastinal widening evident on today 's exam , new from prior , could reflect technique . Degenerative changes at the right shoulder are noted .
    OUTPUT:
    
Multiple findings , new from prior including pleural - based opacity in the right mid lung , subtle opacity in the left upper lobe , and prominence of the mediastinum which can be further assessed on CT of the chest . Also noted is mild pulmonary vascular congestion and calcified mitral annulus .