Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: On the lateral view is a 9 to 14 mm wide nodular opacity projecting over the retrosternal lung just superior to the pulmonary outflow tract . There is no corresponding finding on the frontal view . I can not be sure if the opacity was present a year ago on ___ , however it was not present on a Chest CTA a month earlier , ___ . Since the finding is incidental to the the patient 's current complaint , it would be reasonable to repeat a lateral chest film AND SHALLOW LATERAL OBLIQUE VIEWS in 3 or 4 weeks . Dr ___ ___ , was paged to discuss these findings . There is no focal consolidation , pleural effusion or pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema . Partially imaged upper abdomen is unremarkable . Anterior wedge compression deformity of the T12 vertebral body is chronic .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .