Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . Allowing for this , there are trace bilateral pleural effusions . The cardiomediastinum remains enlarged . There is pulmonary vascular engorgement consistent with CHF exacerbation . Bones are intact .
    OUTPUT:
    
Trace bilateral pleural effusions with pulmonary vascular engorgement consistent with CHF exacerbation .