My son Mark Jr. was dx with stage 4 Neuroblastoma April 13, 2012. His tumor was compressing on his spine which caused him to become paralyzed from his waist down. He has endured 7 rounds of chemotherapy, stem cell transplant, 21 rounds of radiation, 5 rounds of immunotherapy, with one more remaining, and endured scans after scans. I am amazed at the strength or little man has, and still keeps a smile on his face.