Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single PA view of the chest . Comparison is made to multiple prior studies , the most recent ___ ___ . Interstitial prominence is relatively unchanged over multiple prior radiographs . Mild cardiomegaly is stable . No significant opacity , pleural effusion or pneumothorax is seen . Mediastinal and hilar contours are stable . Tracheal deviation to the left is likely due to an enlarged thyroid gland .
    OUTPUT:
    
Findings consistent with known nonspecific interstitial pneumonia seen on chest CT of ___ . No focal opacity to suggest pneumonia .