Neoplastic Process
embryo neoplasm
em·bry·o ne·o·plasm [ em-bree-oh nee-uh-plaz-uhm ]
Definitions related to embryonal neoplasm:
  • (embryonal tumor) A mass of rapidly growing cells that begins in embryonic (fetal) tissue. Embryonal tumors may be benign or malignant, and include neuroblastomas and Wilms tumors.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • (embryo neoplasm) New abnormal embryonic tissue that grows by excessive cellular division and proliferation more rapidly than normal and continues to grow after the stimuli that initiated the new growth cease.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • A usually malignant neoplasm composed of primitive (immature) tissues that resemble fetal tissues. Medulloblastoma, ependymoblastoma, pineoblastoma, and Wilms tumor are representative embryonal neoplasms.
    NCI
    U.S. National Cancer Institute, 2021
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.