Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 FRONTAL CHEST RADIOGRAPHS WERE OBTAINED . THERE IS NO CLEAR CONSOLIDATION , ALTHOUGH A ___ X 19 MM OPACITY A IN THE LEFT LOWER LOBE COULD BE THE RESIDUAL OF INFECTION . THE NATURE OF THIS NODULE NEEDS TO BE CLARIFIED . There is no pleural effusion , pneumothorax or pulmonary edema . The heart size is normal . MILD THICKENING OF THE RIGHT PARATRACHEAL STRIPE COULD BE DUE TO ADENOPATHY .
    OUTPUT:
    
POSSIBLE LEFT LOWER LOBE LUNG NODULE . POSSIBLE RIGHT PARATRACHEAL ADENOPATHY . CONVENTIONAL RADIOGRAPHS RECOMMENDED .