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Lindsey Nelson

Lindsey Nelson is an oncology nurse and cancer survivor (Langerhans cell histiocytosis) in New York City who is a 2:53 marathoner and nurse practitioner student.

Oct 11, 2026

3:59
Mm-hmm.
3:59
"This is my child, and it's not, hasn't been there before." So she brought me to the doctor's, and, um, they kinda brushed it off a little bit, but my mom was pushy and really advocated for me to be seen.
4:12
And, um, it ended up being Langerhans cell histiocytosis, which is a rare type of blood cancer.
4:20
Um, it's one of the subtypes of histiocytosis.
4:25
So histiocytosis is, like, an umbrella term for a rare disorder where there's an accumulation of histiocytes, which is a type of white blood cell in the immune system.
4:36
So when these white blood cells accumulate, they can form tumors which can damage organs and other, and, like, systems in your body.
4:46
So I was having, I had a tumor in my skull, which we ended up finding out it was that type of cancer.

39 MINS LATER

43:42
On top of all the running and the nursing schedule, you're also managing this new diagnosis of diabetes.

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