I have talked with numerous doctors and done a variety of medical database searches.... this has never been mentioned and no doctor that I have talked with has ever heard of it happening. It is most likely an infection around the opening that needs to be treated. If everything that roughly went past the tumor site was capable of doing this, then how would people eat in their early (undiscovered/diagnosed) stages of this without getting esophageal or stomach cancers? I am only giving you an educated opinion, and I am not a doctor, but I would look at infection and take SCC out of the equation and out of the list of things you already have to worry about. Infections around PEGs are commonplace.