Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 03 :41 is submitted .
    OUTPUT:
    
Right subclavian PICC line unchanged in position . Status post median sternotomy with stably enlarged cardiac contour . Bilateral predominantly upper airspace opacities are stable and could be consistent with pulmonary hemorrhage or edema . Small bilateral effusions are again seen . No pneumothorax .