Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded , without focal opacities . There is nearly total opacification of the left lower lung field likely from a combination of a left - sided pleural effusion and cardiomegaly . There is a small right - sided effusion which appears unchanged compared with prior exam . The left - sided effusion is difficult to assess but also appears stable . The aorta is tortuous . Sternotomy wires are intact . There has been interval removal of a right - sided IJ line . Surgical clips adjacent to the right coracoid process are unchanged in appearance .
    OUTPUT:
    
No focal parenchymal opacity . Stable bilateral pleural effusions .