Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest demonstrates no evidence of pneumothorax , pleural effusion or focal consolidation , however there is some mild interval increase in air bronchograms seen in the right lung base . This study demonstrates unchanged position of the endotracheal tube which ends 2 cm above the carina . The left subclavian line is again seen , ending in the right atrium . If repositioning is clinically indicated , this tube could be pulled back approximately 4 cm to end in the low SVC .
    OUTPUT:
    
Mild interval increase in density of air bronchograms in the right lung base which could represent consolidation or atelectasis . If clinical concern exists , a lateral view would be recommended for further evaluation . Otherwise , no significant change since the prior study .