Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting at the left costophrenic angle appears unchanged from ___ and may represent pleural parenchymal scarring . The lungs are otherwise clear without focal consolidation , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . There is no overt pulmonary edema . The cardiomediastinal and hilar contours are within normal limits . There is no acute osseous abnormality detected .
    OUTPUT:
    
1 . No focal consolidation concerning for pneumonia . 2 . Unchanged blunting of the left costophrenic angle from ___ likely represents pleural parenchymal scarring .