Diagnosed in December 2018 with stage IV neuroblastoma with tumors in his adrenal gland and left leg. Did 5 rounds of Frontline chemo and 5 rounds of chemo plus immunotherapy with minimal response and growth of his leg tumor. We're starting radiation therapy to his leg and then will be heading up to Seattle for a different therapy. Through all this, Rex is an active boy who is full of energy and loves to run around and play! We continue to fight this horrible disease.