Germ cell tumor of the ovary. Definition

Medical Definition: Germ cell tumor of the ovary

An abnormal mass of tissue that forms in germ cells (egg) from the ovary (female reproductive gland in which eggs are formed). Usually these tumors occur in adolescent girls or young women, affecting only one ovary and can be benign (not cancerous) or malignant (cancerous). The germ cell tumor of the ovary most common is called dysgerminoma.

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