Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate cardiomegaly is unchanged . The aortic knob is calcified . There is continued rightward deviation of the trachea at the level of the thoracic inlet due to known left thyroid nodule . There is mild pulmonary vascular congestion , improved compared to the previous radiograph . Lungs are hyperinflated without focal consolidation . Small bilateral pleural effusions are not substantially changed in the interval . No pneumothorax is identified . Right humeral hardware is re - demonstrated . There are mild degenerative changes noted in the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular congestion , improved from the previous study with probable unchanged small pleural effusions bilaterally .