Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is stable . The hilar and mediastinal contours are within normal limits . A VAGUE OPACITY PROJECTING OVER THE LEFT FIRST COSTO STERNAL JUNCTION COULD BE SCLEROSIS OF THOSE STRUCTURES BUT TO EXCLUDE A SMALL LUNG NODULE LORDOTIC VIEW OF THE CHEST IS RECOMMENDED . The lungs are OTHERWISE clear . There is no focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
POSSIBLE LEFT APICAL LUNG NODULE . CHRONIC MILD CARDIOMEGALY . NO EVIDENCE OF ACUTE CARDIAC DECOMPENSATION .