Quote from a post on quora which I read today.
(start quote): "I'm not a surgeon, but heard this story from a family friend who used to work at the NIH with a highly successful and recognized surgical oncologist (I'll call him Dr. S) who told this story.
I heard it secondhand, so don't have all the details, but think it's a pretty amazing story regardless (apologize in advance for my clear lack of medical terminology).
Anyway, Dr. S gets a patient with late stage cancer, who had a good sized tumor somewhere in his midsection. It's believed to potentially be operable on, so the man is prepped for surgery and Dr. S begins by opening up the patient's abdomen.
To go off on a quick tangent, do you know why cancer is called cancer? It's no coincidence it has the same name as the crab in the zodiac. Tumors are rarely one self contained sphere — they have "legs" that branch out in all different directions, and kinda sorta resemble a crab. I encourage you to look it up, and it's one of the reasons it's so much easier to treat cancer when you catch it early…usually the small "lump" is only the visible portion of the tumor"
Back to the story, as Dr. S described it, it was one of the worst tumors he had ever seen, and the cancer was so developed that surgery was going to be impossible. So, the good surgeon had no other choice but to sew the patient back up and give him the prognosis. There was no further treatment that could be done.
About two or three years go by, and Dr. S sees a patient's file with a familiar name come across his desk. Dr. S recognized it as the man he operated on a few years prior, but no way it could be the same guy, right?
The man had come back in for something unrelated to his cancer (though I think something that involved a CT scan). When Dr. S went to see him, he saw none other than the patient he sewed up two years prior, standing there in good health. Despite having had treated thousands of patients, Dr. S was in shock. They talked for a few minutes, and I wanna say Dr. S got permission to look at the man's most recent scans, and there was no sign of the cancer. Zero. It was completely gone.
No, the guy hadn't found another surgeon nor underwent chemo, in fact, Dr. S was the last person to have even operated on him. The only explanation was that the immune system had recognized the tumor as a foreign body / threat and destroyed it.
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With parents in the medical field, I have heard several other similar-ish stories, but this one by far is the most amazing one I've heard.
As a disclaimer, this is very much a true story (though I don't remember the type of cancer or the name of the doctor). Although what happened is extremely rare, it's not impossible — the human body and immune system are capable of extraordinary things. It's no surprise there are several cancer treatments that focus on simply getting the immune system to recognize and fight the cancer." (end quote)