[Staining of blood smears with rivanol in patients suffering from bronchogenic neoplasms]

Blood smears of patients suffering from bronchiogenic lung cancer were stained with Rivanol and observed by means of the fluorescence microscope. The results were compared with those obtained by FEULGEN's method. It was found that a single intravenous infusion of cyclophosphamide 30 mg/kg did not change the picture of Rivanol-coloured nuclei which is not always true of the results obtained by FEULGEN's method.