Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube terminates 4 .5 cm from the carina . Retrocardiac atelectasis is present ; however , no focal consolidations are worrisome for pneumonia . There may be a small left pleural effusion . Aortic knob is partially calcified . NG tube reaches the gastroesophageal junction but not any further .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . NG tube reaches the gastroesophageal junction .