Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear opacities in the lung bases and hyperexpansion are findings which correspond with stable underlying chronic obstructive pulmonary disease . A calcified granuloma in the left upper lobe is stable . There is no new pulmonary nodule or mass . No consolidation or pneumothorax is present . Stable blunting of the posterior right costophrenic angle likely represents scarring . There is no large pleural effusion . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Underlying probable chronic obstructive pulmonary disease without acute process .