Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Comparison is made with the next preceding similar study ___ . During this two - day examination interval , the patient underwent a chest CT examination on ___ , which is consequently also reviewed . Enlarged heart size as before . Permanent pacer in left anterior axillary position connected to two - three electrodes including ICD device , right atrial wire and left ventricular myocardium stimulation via a trans - coronary - venous approach . Pulmonary vascular congestion as before . The right - sided pigtail catheter remains in the lower lateral portion of the pleural space , and there is no evidence of remaining significant pneumothorax in the right apical area . The right - sided density in the lower - middle lobe area persists . Similar as on the preceding image of ___ , it is impossible to identify the stent which apparently was placed in the common bronchus to the right middle lobe and lower lobe . This finding was well visualized on the CT study where only spurious evidence of some air could be identified in the more distal depending pulmonary parenchymal area . As can be seen on a chest CT , the bronchus to the right upper lobe divides into two major branches , the lower of which supplies the mid territory of the right hemithorax and also contains multiple patchy infiltrates . The right - sided infrahilar mass density which in location matches the stent does not show evidence of any air-containing pulmonary parenchymal tissue distally to the stent .
    OUTPUT:
    
No evidence of significant pneumothorax . Persistent mass lesion with evidence for obstruction to distal airways in right lower lobe area .