Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is top - normal to mildly enlarged . The aorta is calcified . Left base opacity is seen which could be due to pneumonia . There is slight blunting of the costophrenic angles and small pleural effusions may be present . There is central pulmonary vascular engorgement without overt pulmonary edema . Gaseous distention of the stomach is seen along with coarse calcifications of the splenic artery .
    OUTPUT:
    
Left lower lobe opacity raises concern for pneumonia . Blunting of the costophrenic angles , trace effusion not excluded . Central pulmonary vascular engorgement .