L.B.
My son had a congenital bone cyst we found when he was 10. He punched his brother & had pain in his arm so that he couldnt lift it. 3 days later he had an xray. The Dr never mentioned cancer only that we had to monitor the healing of the bone with regular xrays for a period of about 6 months. He is now 18 with no problems & ran track & cross country through highschool.