Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is diffuse central peribronchial interstitial thickening . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Peribronchovascular interstitial thickening , likely secondary to viral / mycoplasma infection . Recommended follow - up radiographs to ensure resolution and to exclude a more chronic process such as sarcoid . Findings discussed with Dr .___ at 9 :30 A . M on ___ .