Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is mildly enlarged and unchanged from prior study . Postoperative mediastinal contour is unchanged with median sternotomy wires and surgical clips in place . Hilar contours are unremarkable . The lungs are clear . There is no pleural effusion or pneumothorax . Previous Boerhaave 's repair is identified with gastric bubble seen superior to the diaphragm compatible with a gastric fundal flap as well as a left - sided intercostal flap .
    OUTPUT:
    
No acute intrathoracic process with visualization of esophageal repair .