Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes without pleural effusion , focal consolidation or pneumothorax . Hilar and mediastinal silhouettes are unremarkable . The tortuous descending aorta is more bulbous than on a prior PA and Lateral Chest Radiographs , and may have developed a small aneurysm . Heart size is top normal . Mild pulmonary vascular congestion seen on ___ exam has resolved . Pacemaker leads are in unchanged position .
    OUTPUT:
    
1 . No evidence of acute cardiopulmonary process . 2 . Mild vascular congestion seen on ___ exam , has resolved . 3 . Small aneurysm , descending thoracic aorta , can not be excluded . Elective evaluation suggested .