Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The upper thoracic esophagus is dilated , and a 1 - cm radiopaque structure can be seen overlying this location , which may represent an ingested foreign body . Bilateral pulmonary edema and a right - sided pleural effusion are noted . Heart size is normal . There is asymmetric enlargement of the right hilum , for which a prior comparison is not available for review . There is no pneumothorax . Atherosclerotic calcifications in the aortic arch are noted . An IVC filter is in place . S - shaped scoliosis of the spine spine as well as asymmetric degenerative changes of the left glenohumeral joint are also evident .
    OUTPUT:
    
1 . Radiopaque structure overlying the upper dilated esophagus , of unclear etiology , but possibly representing persistent foreign body within the esophagus . 2 . Pulmonary edema with right - sided pleural effusion . 3 . Asymmetric enlargement of the right hilum for which comparison to prior chest radiograph is necessary to further evaluate .