Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . A small rounded opacity is seen overlying the right hemithorax . This is most likely due to a nipple shadow or overlapping structures at the costochondral junction . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
No acute cardiopulmonary process ; specifically , no evidence of pneumonia .