Another hypothesis on skin cancer

I wouldn’t call this a new theory, it is an accepted theory. Damaged tissue appears, in some cases, to be prone to malignant cellular conversion.

Malignant melanomas are alleged by some to be caused by UV light exposure–however that theory ignores other considerations, like the incidence of malignant melanoma and locations of many melanomas.

Malignant melanoma is a bad boy. Best to have big or growing or ugly looking melanomas taken off and analyzed, and not just in the sun exposed areas.

http://www.realclearscience.com/journal_club/2015/09/08/could_scratched_moles_lead_to_cancer.html

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2 responses to “Another hypothesis on skin cancer

  1. One has to laugh at the weenie words in this news story…just the word “may” appeared ten times. Suggesting something isn’t scientific proof of anything.

    • Nobody is talking about proofs here. It is phenomenology, nothing else.

      I had a hemangioma develop on the site of a light acid burn. It started out as a permanent red spot that remained mechanically indistinguishable from the surrounding skin for several years, then rapidly grew into a dense lump that had to be surgically removed.

      My daughter had an identically-looking lump develop on her face following UV damage, with similar growth dynamics and similar final histology (both hers and mine were removed by the same doctor).

      The problem with such observations is that no matter how many we’ve got, they do not contribute much to our understanding of how things work. I’ve spilled and sprayed various acids on my skin hundreds of times during my lifetime, and the only spot that happened to heal into a tumor wasn’t even the only spot in the same incident.

      The only useful way we can sum up our knowledge of skin development and regeneration is to say that some kinds of damage may lead to cancer in some individuals under some circumstances, some of the time. You don’t like weak statements? Entertain yourself with mathematics.

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