Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . Pre seen opacity projecting over the right upper hemi thorax is no longer seen , consistent with external artifact / hair on the prior study . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Previous seen opacity projecting over the upper right hemithorax is no longer present , consistent with external artifact on the prior study .