Neuroblastoma is a type of tumor that forms in the immature nerve cells, or neuroblasts, of children. Neuroblasts begin developing in the fetus and, once the child is born, most of those cells develop normally. However, when they develop atypically, the neuroblasts become cancerous and result in neuroblastoma. Neuroblastoma tumors typically develop in the adrenal glands but can also appear anywhere a group of nerve cells exists—the abdomen, chest, neck and around the spine are also common areas where cancer could develop. Neuroblastoma most often affects children under the age of five and rarely occurs in older children. It accounts for approximately 7-10 percent of childhood cancers. Neuroblastoma is slightly more common in boys than in girls Signs and Symptoms of Neuroblastoma There are a host of symptoms of neuroblastoma that can vary greatly, depending on where the tumor is located...