Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 03 :59 is submitted .
    OUTPUT:
    
The bilateral diffuse airspace process does not appear to be significantly changed and relatively spares the left lower lung . Findings would be consistent with severe pulmonary edema or hemorrhage . Clinical correlation is advised . Right subclavian PICC line unchanged in position . Status post median sternotomy with stably enlarged heart . Stable probable small pleural effusions . No pneumothorax appreciated .