Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung is moderately inflated , mild diffuse increased opacity , and prominent hila are due to mild vascular congestion . Small right pleural effusion and left lower lobe atelectasis are stable since prior CXR . In the appropriate clinical setting , pneumonia should be considered . Mild left trachea deviation might be related to thyroid nodule , which can be characterized by dedicated ___ thyroid
    OUTPUT:
    
Left lower lobe opacity and left base pleural effusion are stable since prior CXR . In the appropriate clinical setting , pneumonia should be considered . Mild vascular congestion .