Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph was provided . Overlying EKG leads limits evaluation . The heart is mildly enlarged . There is blunting of the right hemidiaphragm which appears essentially stable from the prior imaging study . There is a probable small right pleural effusion . Areas of subtle nodular opacities within the lung are poorly visualized with biapical pleural parenchymal scarring again noted . Consider CT to assess for interval changes with most recent prior CT exam dated ___ . Mediastinal contour appears stable . Chronic deformity of the right proximal humerus noted .
    OUTPUT:
    
Scattered nodular opacities as seen on prior CT chest warrant a followup CT to assess for subtle interval changes / stability .