Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: For sequential portable AP chest films ___ at 16 : 55 are submitted .
    OUTPUT:
    
On the sequential imaging , Dobbhoff feeding tube initially is seen projecting over the upper esophagus and subsequently within the right mainstem bronchus but on the final image , the tube courses below the diaphragm with the tip projecting over the stomach . Chest wall deformity related to multiple bilateral old rib fractures is stable . Appearance of the lungs is unchanged with decreased aeration at the right base which presumably is chronic . No pneumothorax . No large effusions or pulmonary edema . Heart remains enlarged .