Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are prominent interstitial markings compatible with known pulmonary fibrosis . Widening of the mediastinum is due to mediastinal fat , as demonstrated on subsequent chest CT . Mild cardiomegaly is noted . No focal consolidation or pulmonary edema is present . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Prominent interstitial markings compatible with known fibrosis . No focal consolidation . 2 . Widening of the mediastinum due to mediastinal fat , as demonstrated on subsequent CT chest , with findings reported separately . Mild cardiomegaly .