Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal cardiomediastinal silhouette . The lungs are clear . There is no pneumothorax , pulmonary vascular congestion , or large pleural effusion . Minimal blunting of the posterior costophrenic angle is noted . Moderate kyphosis is unchanged .
    OUTPUT:
    
No evidence of acute cardiopulmonary process such as pneumonia .