Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads are present somewhat limiting assessment . Evaluation is limited due to underpenetrated technique especially at the level of the lung bases . Allowing for technical limitations , the lungs appear clear though hyperinflated with upper lung lucency suggestive of underlying emphysema . The cardio mediastinal silhouette is notable for mild prominence of the main pulmonary artery likely reflective of pulmonary hypertension . No definite signs of pneumonia or edema . No large effusion or pneumothorax . Imaged bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
COPD with probable pulmonary arterial hypertension . No definite signs of pneumonia .