Mary Beth,
I also read this article this morning.
In mid-Jan a thread ran here titled GLUTEN SNIFFING DOG in which I contributed a piece there on George, the cancer sniffing dog in Florida.
George -- and his owner, trainer, handler were in fact the very first (the prototype if you will) investigators in trying to find out whether or not dogs could discriminate, and identify, an odor associated with cancer.
Of general interest here might be the fact that this whole issue began with a group of friends socializing over beer’s one evening. 3 of the women in the group happened to be nurses that worked with this dog trainers wife. The topic arose about how all cancer wards seemed to have a different odor than other wards in a hospital. Not a bad odor, just a different odor. All the nurse there agreed with this observation.
This conversation set this professional dog trainer to wondering if his dog – (in this case George) – who was already trained and functioning in scent discrimination for explosives detection, might be able to also identify a particular scent associated with cancers.
He decided to use skin melanoma as the subject as these melanoma malignancies of the skin are superficial, he could get specimens, and the dog would be able to have an opportunity to test any test-tube learned skills on real people. He set out upon this investigation with the assistance of a local Dermatologist, who was to say the least – very interested.
George proved to be very apt at identifying skin melanoma. He identified this particular neoplasm -- not only in the training set up, but also very professionally

on live human subjects in the Dermatologist’s office.
As I said in the earlier post, this research has now gone into laboratory where they are trying to identify the organic compound(s) that are the origin of the specific associated odor(s) which are identifiable to the canine olfactory system.
And now there is someone working this approach at cancer detection on this end!! Fascinating to watch and contemplate.
Gayle