Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Poor visualization of left hemidiaphragm and retrocardiac lung markings . The cardiac contour is stable , and nasogastric tube is unchanged in position from previous abdominal radiographs . Abdominal surgical ___ are seen consistent with recent gastric surgery .
    OUTPUT:
    
Mild left pleural effusion and lower lobe consolidation consistent with pneumonia .