Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable semi-erect frontal view of the chest demonstrates a skin fold projecting over the left hemithorax . The appearance of the chest is otherwise unchanged from the preceding study of five hours prior without pneumothorax , pleural effusion or focal consolidation . The cardiac silhouette is within normal limits . The aorta is markedly tortuous . The mediastinal and hilar contours are unchanged .
    OUTPUT:
    
No pneumothorax . Findings were communicated by Dr . ___ to Dr . ___ by phone at 10 :35p .m . on ___ .