Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The patient is status post CABG and median sternotomy wires are intact . There are left greater than right bibasilar opacities which may represent atelectasis . More conspiuous left basilar opacity obscures the costophrenic angle , possible effusion . There is no pneumothorax . The cardiac silhouette is not enlarged . The imaged upper abdomen demonstrates multiple dilated air-filled loops of bowel concerning for an obstruction .
    OUTPUT:
    
1 . Left basilar opacity , potentially atelectasis although infection is possible . Probable small left pleural effusion . 2 . Multiple dilated loops of bowel , concerning for small bowel obstruction . Recommend CT abdomen and pelvis for further evaluation .