Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph ___ at of 16 :00 is submitted .
    OUTPUT:
    
The heart remains stably enlarged and may reflect cardiomegaly , although pericardial effusion should also be considered . The left subclavian PICC line is unchanged in position . There has been interval removal of the feeding tube . No focal airspace consolidation is seen to suggest pneumonia . Lung volumes are low with crowding of the vasculature but no pulmonary edema is appreciated . No pneumothorax .