Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is suggestion of mildly prominent left and right pulmonary arteries , raising the possibility of pulmonary hypertension . Otherwise , the cardiomediastinal contours are within normal limits . The hila are unremarkable . The lungs are clear without focal consolidation . There is no evidence of pulmonary vascular congestion . There is no pneumothorax or pleural effusion . Upper lumbar spine posterior fusion hardware is noted , not adequately assessed on this exam .
    OUTPUT:
    
No evidence of pneumonia . Prominent central pulmonary arteries raise the possibility of pulmonary hypertension .