Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains moderately enlarged . The mediastinal contour is unchanged . There is mild pulmonary vascular congestion , as seen previously . No focal consolidation , pleural effusion or pneumothorax is present . Electronic devices are seen projecting over the chest bilaterally which obscures assessment of the underlying lung bases . No acute osseous abnormalities seen .
    OUTPUT:
    
Study is somewhat limited by the presence of overlying external devices . Mild pulmonary vascular congestion , similar to the previous study .