Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bedside upright AP radiograph of the chest demonstrates little interval change when compared to prior study performed 24 hours ago . There is minimal , stable enlargement of the cardiomediastinal contours consistent with mild chronic heart failure . Persistent obscuration of the pulmonary vascular markings in the right lung base is consistent with trace pulmonary edema . Bibasilar atelectasis is still present . The lungs are otherwise clear . There is no pneumothorax or pleural effusion . A left internal jugular central venous catheter , an endotracheal tube , and an orogastric tube are unchanged and appropriately positioned . The chronic findings of atherosclerotic calcification of the aortic arch and bilateral glenohumeral joint degenerative changes are once again noted .
    OUTPUT:
    
1 . Mild chronic congestive heart failure with stable trace pulmonary edema at the right lung base . 2 . Stable bibasilar atelectasis .