Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac silhouette is mildly enlarged . The mediastinal contours are unremarkable . There is a left paraspinal opacity projecting just above the medial left hemidiaphragm which is nonspecific but may relate to patient 's hiatal hernia as seen on CT from ___ or alternatively atelectasis . Flattening of the diaphragms persists suggesting possible COPD . There may be mild central pulmonary vascular prominence without overt pulmonary edema . Slight blunting of the left costophrenic angle is likely due to overlying soft tissue , no large pleural effusion is seen . No definite focal consolidation . The lateral left ribs are not well assessed on the current study due to overlying soft tissue and underpenetration , no obvious displaced fracture is seen . However , rib series or CT are more sensitive . Degenerative changes are seen at the acromioclavicular joints . DISH is again seen along the thoracic spine .
    OUTPUT:
    
COPD with possible mild pulmonary vascular prominence without overt pulmonary edema . Lateral ribs not well assessed due to underpenetration due to overlying soft tissue , no obvious displaced fracture seen , however , dedicated rib series or CT are more sensitive