Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The diameter of the tracheostomy tube cuff is consistently greater than the expected diameter of the trachea , suggesting tracheomalacia . Right PICC ends in the low SVC . NG tube in the decompressed stomach . Complete opacification of the left hemithorax due to left lung collapse is unchanged since at least ___ and has occurred previously . The left margins of the cardiomediastinal silhouette are obscured and the volume of any left pleural effusion is indeterminate . A small right pleural effusion is new or increased . The right lung is clear . There is no pneumothorax .
    OUTPUT:
    
1 . Tracheostomy with hyperexpanded cuff , likely due to tracheomalacia . 2 . Appropriate positioning of right PICC and NG tube . 3 . Persistent left lung collapse . Chronic severely elevated left hemidiaphragm is probably paralyzed or extremely eventrated . 4 . Small right pleural effusion .