Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube ends 4 cm above the carina . The nasogastric tube ends in the stomach , however , it 's side hole ends at the gastroesophageal junction . A left pectoral pacer and defibrillator has leads ending in appropriate positions . The right lung is clear . The left costophrenic angle is not visualized and there is left lower lobe opacity and a small left pleural effusion . The mediastinal contours are normal . There is mild cardiomegaly .
    OUTPUT:
    
The endotracheal tube ends 4 cm above the carina . The nasogastric tube ends with it 's side hole at the gastroesophageal junction and could be advanced . Mild cardiomegaly . Small left pleural effusion and left lower lobe opacity could be further evaluated with PA and lateral views once the patient is stable .