Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . The thoracic aorta is tortuous . Enlargement of the pulmonary arteries is stable , suggestive of underlying pulmonary artery hypertension . There is no pneumothorax or pleural effusion . There is no focal lung consolidation . Partially imaged is right shoulder prosthesis .
    OUTPUT:
    
No radiographic evidence of pneumonia .