Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Asymmetry in the relative densities of the right and left sides of the chest is due to rotation and previous right chest wall trauma , including fractured anterior ribs . Lungs are clear . There is no pleural effusion or pneumothorax . The cardiac size is normal . .
    OUTPUT:
    
Given patient rotation , unremarkable chest radiograph with no evidence of acute cardiopulmonary process .