Breast Cancer & E Cigarettes: Is Vaping a Safer Alternative to Smoking? Maurer Foundation Use of e cigarettes after quitting smoking increases lung cancer risk Cancerworld Magazine E cigarettes are likely to cause lung cancer and oral cancer E cigarettes 'likely' to cause two different types of cancer due to 'tumour causing chemicals damaging DNA' E Cigarettes Promote Macrophage Tumor Cells Crosstalk: Focus on Breast Carcinoma Progression and Lung Metastasis