Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well expanded and clear lungs . There is mild cardiomegaly , which is unchanged . There is increased prominence of the hila , particularly on the left , raising concern for mild adenopathy versus enlarged vasculature . There is no pneumothorax , pleural effusion , or consolidation . There is leftward deviation of the trachea from known thyroid nodule .
    OUTPUT:
    
1 . No pneumonia . 2 . Increased prominence of the left hilum concerning for mild adenopathy versus vascular enlargement .