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Jak2 positive, biopsy next: Does it mean I have blood cancer?

Posted by tkp22 @tkp22, Jun 21, 2022

Hi, I've been told I'm jak2 positive. I'm due to have a bone marrow biopsy in a day or two. My question is, if it comes back normal does it still mean I have some kind of blood cancer?

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rk55416 | @rk55416 | Sep 16 6:18am
In reply to @1995victoria "I guess I need clarification. Members saying they are Jak2 positive......but don't indicate the platelets out..." + (show)
@1995victoria

I guess I need clarification. Members saying they are Jak2 positive......but don't indicate the platelets out of control. Was Jak2 determined by a blood test? or a bone marrow biopsy/aspiration. Can you have Jak2 mutation without having out of control platelets? ?And in which case it's just watchful waiting for platelets to get out of control? many thanks for any answers you can provide

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Hi, I'm 68. Just diagnosed with Jak2. They did a DNA blood test. My platelets are fine.

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1995victoria | @1995victoria | Sep 17 8:37am

Good question. Jak2 might be the first sign that you might have MPN. Curious why did they do test for Jak2, did you have some other symptoms? I only had extensive blood testing and bone marrow biopsy AFTER my platelets kept going up, year after year.

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