NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,444 terms related to cancer and medicine.
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- listen (EK-toh-MEH-zen-ky-MOH-muh)
- A rare, fast-growing tumor of the nervous system or soft tissue that occurs in children and young adults. Ectomesenchymomas may form in the head and neck, abdomen, perineum, scrotum, or limbs. Also called malignant ectomesenchymoma.