Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Technique is limited due to underpenetration and low lung volumes . The lungs appear clear without focal consolidation or overt signs of edema . Subtle increase in interstitial markings may reflect underlying chronic lung disease in this patient with scleroderma . There is prominence of the main pulmonary artery which reflects known pulmonary hypertension . No large effusion or pneumothorax . Bony structures are intact .
    OUTPUT:
    
No definite evidence for pulmonary edema or pneumonia . Chronic findings as above .