Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . A left upper extremity PICC line is seen with its tip extending to the upper SVC region . The previously noted tracheostomy is no longer visualized . There is improved aeration at the right and left lung base without definite signs of pleural effusion . Mild bibasilar atelectasis is noted . Cardiomediastinal silhouette appears grossly stable with mild cardiomegaly noted . Lung bases are somewhat limited in overall evaluation due to overlap with overlying soft tissues on the frontal projection . No definite retrocardiac consolidation is seen in the lateral projection , though evaluation is somewhat limited .
    OUTPUT:
    
Mild cardiomegaly . Probable bibasilar atelectasis with interval resolution of bilateral pleural effusions . PICC line tip in the upper SVC .