Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates about 4 cm above the carina . An orogastric courses into the stomach . Pacer pad projects over the left lower chest in addition to other wires that are probably outside the patient . The cardiac , mediastinal and hilar contours are unremarkable within the limitations of technique . There is no pleural effusion or pneumothorax . There is slight rightward shift of mediastinal structures with patchy medial right basilar opacity suggesting atelectasis . Otherwise the lungs appear clear .
    OUTPUT:
    
Right basilar opacity with volume loss , most likely due to atelectasis although other etiologies such is aspiration pneumonitis or pneumonia are not excluded by this examination . Short - term follow - up radiographs may be helpful to reassess .