neuroblastoma

Neuroblastoma is the most common extracranial solid cancer in infancy and childhood. It is a neuroendocrine tumor, arising from any neural crest element of the sympathetic nervous system. Close to 50 percent of neuroblastoma cases occur in children younger than two years old.
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Neuroblastoma is a type of cancer that usually originates either in the tissues of the adrenal gland or in the ganglia of [more]Neuroblastoma - Community and Resources

Noun
1. malignant tumor containing embryonic nerve cells; usually metastasizes quickly
(hypernym) malignant tumor, malignant neoplasm, metastatic tumor

Childhood tumor of adrenal or related tissue in the nervous system.

Cancer that arises in immature nerve cells and affects mostly infants and children.