struma ovarii


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struma

 [stroo´mah]
Hashimoto's struma (struma lymphomato´sa) Hashimoto's disease.
struma ova´rii a teratoid ovarian tumor composed of thyroid tissue.
Riedel's struma Riedel's thyroiditis.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

stru·ma o·va·ri·i

a rare ovarian tumor, regarded as teratomatous, in which thyroid tissue has surpassed the other elements; occasionally associated with hyperthyroidism.
Farlex Partner Medical Dictionary © Farlex 2012

struma ovarii

The presence of mature thyroid tissue as the predominant tissue in an ovarian teratoma, which may cause clinical hyperthyroidism; 5-10% of struma ovarii become malignant, which is indicated by metastasis
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

stru·ma ova·ri·i

(strū'mă ō-var'ē-ī)
A rare ovarian tumor, regarded as teratomatous, in which thyroid tissue has surpassed the other elements; occasionally associated with hyperthyroidism.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
In order to qualify for struma ovarii more than 50% of the overall tissue should contain thyroid7.
Malignant struma ovarii is diagnosed on the basis of cellular atypia, mitosis and stromal invasion8.
The same is true for histologic malignancy in struma ovarii, as it does not necessarily equate with biological malignancy.
Conclusions from this study of histology plus our two other earlier analyses (1,3) indicate that struma ovarii, especially if cellular ("proliferative"), is a neoplasm of low-grade malignancy, with a low but definite propensity to recur.
Case Age Location Tumor No in Years Diameter[cm] 1 34 Right 5 2 23 Right 10 3 32 Left 10 4 35 Right 9 5 46 Right 7 6 37 Right 6 7 38 Left 15 8 41 Left 7 9 32 Left 10 10 40 Right 11 11 40 Right 10 12 25 Right 6 13 24 Left 7 Case Diagnosis Histologic No Grade 1 MCT * 0 2 MCT 0 3 MCT 0 4 MCT 0 5 MCTwith MC[A.sup.+] 0 6 MCT 0 7 MCT with SC[C.sup.[??]] 3 8 Struma Ovarii 0 9 MCT 0 10 MCT 0 11 MCT 0 12 MCT 0 13 MCT 0
Hyperthyroidism is rare; however, the preoperative diagnosis of struma ovarii/malignant struma ovarii may be suggested through thyroglobulin measurement or from scanning of patients affected by hyperthyroidism.
Metastasis of malignant struma ovarii has been documented.