Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Distension of the upper thoracic and lower cervical esophagus could be related to esophageal dysmotility . Lungs and pleural surfaces are clear .
    OUTPUT:
    
Distended proximal esophagus , which may be related to esophageal dysmotility . No evidence of aspiration or infectious pneumonia .