Canadian Medical Guide > Diseases > Neoplasms > Neoplasms by Histologic Type > Neoplasms, Germ Cell and Embryonal > Teratoma > Struma Ovarii Terms and Definitions

Struma Ovarii

Medical Definition:	A rare teratoid tumor of the ovary composed almost entirely of thyroid tissue, with large follicles containing abundant colloid. Occasionally there are symptoms of hyperthyroidism. 5-10% of struma ovarii become malignant, the only absolute criterion for which is the presence of metastasis. (Dorland, 27th ed; Segen, Dictionary of Modern Medicine, 1992)
Guide Notes:	benign or malignant; /blood supply /chem /second /secret /ultrastruct permitted; coord IM with OVARIAN NEOPLASMS (IM); struma carcinoid = STRUMA OVARII (IM) + CARCINOID TUMOR (IM) + OVARIAN NEOPLASMS (IM)

CANADIAN MEDICAL GUIDE

Thank you for visiting Canadian Medical Guide .com