Though delays in the diagnosis of cancer in children are short and attributable to clinical presentation and healthcare system complexity, the impact of such delays on prognosis remains unclear, according to a new study.

Childhood cancers are fortunately rare, but among them, neuroblastoma is a special case, accounting for 7 percent of all childhood cancers, but 15 percent of childhood cancer deaths. It typically occurs as a solid tumor in the abdomen, but also in the neck, chest, and pelvis, developing in the network of the body's sympathetic nervous system.

The vast majority of chemotherapy errors identified in children reach patients, according to one of the first epidemiological studies of cancer drug errors in children.

Developing brain tumors can coax assistance from nearby cells known as microglia, according to a new study from scientists at Washington University School of Medicine in St. Louis. The researchers have identified one protein made by microglia that helps accelerate tumor growth and are looking for others.

Approximately 20% of children with Acute Lymphoblastic Leukemia will experience a relapse of their disease following treatment. Of these, most will never be cured.