Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Cardiomediastinal silhouette and hilar contours are unremarkable . Heterogeneous retrocardiac opacities are identified which project posteriorly on the lateral view concerning for pneumonia . The right lung is clear . There is trace left pleural effusion . There is no pneumothorax . Trace pneumoperitoneum is expected given recent abdominal surgery .
    OUTPUT:
    
Retrocardiac consolidation compatible with pneumonia . Results were discussed over the telephone with Dr . ___ by Dr . ___ at 10 : 12 a .m . on ___ at the time of initial review .