Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is prominence of the central pulmonary vasculature compatible mild pulmonary edema . Additionally there is a right lower lobe opacity which is concerning for infection . There is no pneumothorax or pleural effusion . The cardiomediastinal slight is unchanged with a tortuous aorta and a valvular replacement . Median sternotomy wires are intact .
    OUTPUT:
    
1 . Mild pulmonary vascular congestion . 2 . Right lower lobe opacity concerning for infection . Repeat radiograph is recommended after diuresis .