Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Heart size is mildly enlarged . Mediastinal and hilar contours are unremarkable . There are low lung volumes with crowding of the bronchovascular structures , with possible mild pulmonary vascular congestion . Eventration of the right hemidiaphragm is noted . There is no focal consolidation , pleural effusion or pneumothorax identified . No definite acute osseous abnormality is identified . Degenerative changes of the glenohumeral and acromioclavicular joints are noted bilaterally . Mild degenerative changes are also seen within the thoracic spine .
    OUTPUT:
    
Low lung volumes with possible mild pulmonary vascular congestion . No pneumothorax or displaced rib fracture identified . If there is continued clinical concern for a rib fracture , then a dedicated rib series is suggested .