noun, plural neu·ro·blas·to·mas, neu·ro·blas·to·ma·ta [noo r-oh-bla-stoh-muh-tuh, nyoo r-] /ˌnʊər oʊ blæˈstoʊ mə tə, ˌnyʊər-/. Pathology.
- a malignant tumor of immature nerve cells that usually starts in the autonomic nervous system or adrenal gland and spreads quickly, most often affecting young children.
noun plural -mata (-matə) or -mas
- pathol a malignant tumour that derives from neuroblasts, occurring mainly in the adrenal gland
- A malignant tumor composed of neuroblasts, originating in the autonomic nervous system or the adrenal medulla and occurring most commonly in infants and young children.