Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views done in a wheelchair . Bronchovascular markings are increased , as before . There is streaky density bilaterally consistent with subsegmental atelectasis or scarring . There is ill - defined increased density in the right lung base . There is evidence of a small right pleural effusion or pleural thickening . The heart appears large although cardiac size may be exaggerated by AP technique . There is evidence of a hiatal hernia . The aorta is calcified . Allowing for differences in technique , mediastinal structures appear stable . A bipolar transvenous pacemaker is been inserted with the intact electrodes properly placed . Compression deformity of a lower thoracic vertebral body a chronic fracture of the right clavicle and degenerative changes in the shoulders are again demonstrated , unchanged .
    OUTPUT:
    
Prominent bronchovascular markings which are likely chronic . Subsegmental atelectasis or scarring . Mild vascular congestion would be difficult to exclude . There is pleural thickening and or fluid at the right base that partially obscures the underlying portion of the right lung . A bipolar transvenous pacemaker appears to be in satisfactory position .