Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . The heart size is borderline enlarged . The mediastinal and hilar contours are unremarkable . Crowding of bronchovascular structures is present without overt pulmonary edema . Minimal patchy opacities are noted in the lung bases without focal consolidation . Incidental note is again seen of an azygos lobe . No pleural effusion or pneumothorax is detected . No acute osseous abnormalities seen .
    OUTPUT:
    
Slightly low lung volumes with mild bibasilar patchy opacities , likely atelectasis , however infection is not excluded in the correct clinical setting .