Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Lung volumes are low , though there is no focal airspace consolidation to raise concern for pneumonia . No large effusion or pneumothorax is seen . There remains prominence of the right pulmonary hilum which given stability over multiple prior exams , likely reflect prominent vasculature . Heart and mediastinal contour appear grossly within normal limits . The bony structures are intact .
    OUTPUT:
    
Stable prominence of the right pulmonary hilus which given stability over time and prior characterization on CT chest , likely reflects vascular prominence , possibly in the setting of pulmonary hypertension .