Otto was diagnosed with Stage IV Neuroblastoma in January of 2016. Since then, he has been through 2 brain surgeries, one adrenal gland surgery, 12 rounds of radiation, two rounds of MIBG therapy (for which he had to travel to Benioff Children's Hospital in San Francisco) 16 rounds of chemotherapy, and 6 rounds of antibody therapy. He has been through so much, and yet he keeps being sunny!