Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is intubated . An endotracheal tube terminates about 8 cm above the carina . The portion with the balloon is not well visualized , lying superior to the films . A dialysis catheter terminates in the uppermost right atrium . A right - sided PICC line is been removed . The cardiac , mediastinal and hilar contours appear unchanged including marked enlargement of the main pulmonary artery contour . Incidental note is made of an azygos fissure , a common normal variant . There is mild opacification in the retrocardiac area but markedly decreased . Elsewhere , the lungs appear clear . Small pleural effusions are likely but also markedly decreased .
    OUTPUT:
    
1 . Persistent left basilar opacity but markedly decreased . Although active infection is not excluded , this appearance could be explained by resolving atelectasis or recent prior infection . 2 . Status post endotracheal intubation with high - lying endotracheal tube , not fully visualized including its balloon . Advancing the tube by several cm may be appropriate .