No s No symptoms before recent scan. No treatment recommended except to wait 6 months and rescan. I smoked for more than 50 yrs before I quit and entered the CT scan program. All my scans resulted with no lung issues until the last one which is associated with my start of vaping. My e-liquid source is reputable: "By formulating and producing our vape juice domestically, we can source premium ingredients like United States Pharmacopeia-grade Nicotine, Propylene Glycol and Vegetable Glycerin. We use only Flavor and Extract which we insist on having tested by an independent lab." Lab results are on line and there is no Diacetyl or 2,3-Pentanedione in their e-liquid.