Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates approximately 1 .5 cm above the carina . The lung volumes are low , obscuring cardiac borders , although the heart is probably normal in size . There is moderate - to - severe elevation of the diaphragm with coinciding dilatation of the viscus in the left upper quadrant , probably the splenic flexure of the colon . A splenic shadow is not clearly visualized . Patchy left basilar opacity may be associated with atelectasis , but is not entirely specific or characterized here . In addition , there is mild diffuse interstitial abnormalities suggesting pulmonary edema . The patient has a leftward convex spinal curvature with fixation devices to the partly imaged and characterized along the lower thoracic and upper lumbar spines .
    OUTPUT:
    
1 . Endotracheal tube terminating approximately 1 .5 cm above the carina . If clinically indicated , the tube could be retracted somewhat for more optimal positioning . 2 . Left basilar opacity with elevation of the left hemidiaphragm , suggestive of volume loss . 3 . Findings suggesting moderate pulmonary edema . 4 . Prominent air-filled viscus in the left upper quadrant , suggesting moderate distal colonic distension . Clinical correlation suggested .