Neoplastic Process
struma ovarii
Subclass of:
Teratoma
Definitions related to struma ovarii:
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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)NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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An ovarian mature teratoma characterized by the presence of aberrant thyroid tissue. The aberrant thyroid tissue shows morphologic changes identical to thyroid adenoma or carcinoma. Patients may present with abdominal mass and unusual symptoms due to thyrotoxicosis, or Meigs syndrome (ascites and pleural effusion).NCI ThesaurusU.S. National Cancer Institute, 2021
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Struma ovarii is a rare ovarian tumor defined by the presence of thyroid tissue comprising more than 50% of the overall mass. It most commonly occurs as part of a teratoma, but may occasionally be encountered with serous or mucinous cystadenomas.WebMD, 2019
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