Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size remains mildly enlarged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Eventration of the right hemidiaphragm is again noted . Patchy opacities are seen in the lung bases without focal consolidation . No pleural effusion or pneumothorax is present . 4 mm calcified nodule in the left upper lung field is unchanged , likely a granuloma . There are mild degenerative changes noted in the thoracic spine with unchanged compression deformity at the thoracolumbar junction .
    OUTPUT:
    
Bibasilar patchy opacities , likely atelectasis in the setting of low lung volumes . Infection is not completely excluded in the correct clinical setting . No evidence of congestive heart failure .