Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is upper limits of normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Lungs are clear except for a subtle peripheral reticular pattern in the mid and lower lungs which is been more fully evaluated by prior CT of ___ . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Mild interstitial lung abnormality appears chronic based on prior CT of ___ . If there is clinical concern for progressive interstitial lung disease , follow - up high - resolution chest CT may be considered .