Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged . The aorta is diffusely calcified with unchanged tortuosity . Mediastinal contours appear similar . Perihilar haziness and vascular indistinctness is compatible with mild pulmonary edema . More focal opacities within the right upper and lower lung fields raise concern for superimposed infection . Trace bilateral pleural effusions are noted . No pneumothorax is identified . Posterior fusion hardware within the thoracolumbar spine is incompletely imaged . Compression deformity of the thoracic vertebral body superior to the fusion hardware appears chronic .
    OUTPUT:
    
Mild pulmonary edema with small bilateral pleural effusions . More focal opacities in the right upper and lower lung fields raise concern for superimposed infection .