Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are poorly expanded accounting for some vascular crowding . Bilateral hilar prominence is related to supine positioning rather than vascular engorgement . Cardiomediastinal contour is unremarkable . There is no pleural effusion or pneumothorax . The endotracheal tube ends approximately 1 .5 cm above the carina but the patient 's neck is seen to be in flexion . A nasogastric tube has the side port in the stomach and the tip out of view .
    OUTPUT:
    
No evidence of acute cardiopulmonary process although assessment limited by positioning and expiratory phase radiograph . Repetition of the exam during appropriate inspiration is recommended .