Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mild to moderately enlarged . Mediastinal and hilar contours are unremarkable . Aortic knob calcifications noted . There is mild pulmonary vascular engorgement with small amount of fluid in the fissures and trace bilateral pleural effusions . Streaky atelectasis is also noted in the lung bases without focal consolidation . Posterior thoracic spinal fusion hardware is incompletely assessed .
    OUTPUT:
    
Mild pulmonary vascular congestion and small bilateral pleural effusions with bibasilar atelectasis .