Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . The cardiomediastinal silhouette and pulmonary vasculature are within normal limits , except for prominence of the pulmonary hila . These have a tapered appearance and this could reflect pulmonary hypertension . No CHF , focal infiltrate or effusion is identified . Minimal blunting of the costophrenic angles is unchanged and may relate top hyperinflation .
    OUTPUT:
    
No acute pulmonary process identified . In particular , no focal infiltrate identified to suggest pneumonia . Hyperinflation compatible with COPD , similar to prior . Prominence of the pulmonary arteries raises the possibility of pulmonary hypertension . Small nodules seen on a ___ chest CT are not appreciated radiographically .