Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Probable background COPD . The cardiomediastinal silhouette is unchanged . Tapered appearance of the hila raises the question of pulmonary hypertension . There is upper zone redistribution , probably unchanged . Diffuse increased interstitial markings are likely chronic . No focal infiltrate or consolidation is identified . No pleural effusion . Right apical pulmonary nodule identified on ___ radiographs is less apparent on the current study , but could be obscured due to overlying osseous structures .
    OUTPUT:
    
1 . Background COPD . 2 . Upper zone redistribution . 3 . No focal infiltrate detect to suggest pneumonic infiltrate . No consolidation . 4 . Right apical pulmonary nodule identified on CXR from ___ is less apparent on the current study , but could be obscured due to overlying osseous structures . Please see report from that study that suggested further evaluation with chest CT , if clinically indicated .