Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A curvilinear opacity over the lateral aspect of the left upper and mid lung is chronically stable since ___ and is most likely a pleural calcification . There are no lung opacities concerning for pneumonia . Right posterior costopleural angle is blunted and is chronic and stable since ___ and probably from a combination of scarring and chronic pleural thickening . No pleural effusion or pneumothorax . Heart size is normal , mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
1 . No pneumonia . 2 . Curvilinear calcification in the left upper and mid lung , which is most likely a pleural calcification , is chronic and stable since ___ .