Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperinflation of the lungs , flattening of the diaphragms , and stable slight hyperlucency of the right upper lung are compatible with history of emphysema . No focal consolidation to suggest pneumonia . No pleural effusion , pulmonary edema , pneumothorax . Stable appearance of the cardiomediastinal silhouette and hila .
    OUTPUT:
    
No acute intrathoracic process .