CLEVELAND, Ohio — Cleveland boy Chaife Jackson celebrated his 12th birthday ringing a victory bell at Thursday night’s Cavaliers game after completing treatment for a rare and aggressive form of cancer, according to Sports Illustrated .

Earlier that day, Chaife Jackson rang the bell at the Cleveland Clinic to mark the end of his fight against Ewing Sarcoma BCOR-CCNB3.

Ewing sarcoma is a rare form of cancer that develops in bones or surrounding soft tissue, most often diagnosed in adolescents and young adults between 10 and 20, the Cleveland Clinic said . The disease commonly causes persistent bone pain and swelling and the affected area may appear warm or raised.

Hours after ringing the bell, the celebration grew when the Cavaliers honored him by displaying the milestone on the aren

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