What is struma ovarii?
Struma ovarii is a rare ovarian tumor that was first described in 1899. It is 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.
How is a struma ovarii diagnosed?
The diagnostic criterion of malignant struma ovarii is based on histological features of the resected ovary. Although not yet uniformly standardized, these criteria include cellular atypia and increased hyperplasia, nuclear pleomorphism, mitotic activity, and vascular and/or capsular invasion.
Is struma ovarii a dermoid cyst?
Struma ovarii is a rare histological diagnosis, a variant of dermoid in which thyroid tissue constitute >50% of the component,[1] also called as monodermal ovarian teratoma where thyroid tissue predominates.
What causes struma ovarii?
Struma ovarii is an ovarian tumor defined by the presence of thyroid tissue comprising >50% of the overall mass. It most commonly occurs as part of a teratoma. Although struma ovarii usually does not secrete thyroid hormones, there are cases in which it produces thyroid hormones, which results in hyperthyroidism.
Is struma ovarii malignant?
Struma ovarii accounts for approximately 5 percent of all ovarian teratomas [2-4]. Depending on the histologic features, struma ovarii can be classified as benign or malignant [5]. The clinical presentation, diagnosis, and management of struma ovarii will be reviewed here.
How is struma ovarii treatment?
As described in previous reports, the key management of struma ovarii is surgical removal. (1-4) In the present study, 44 (64.7%) patients underwent fertility-conserving surgery (includes cystectomy and unilateral salpingo-oopherectomy), regardless of their stated desire or potential for fertility.
How is struma ovarii treated?
How is Struma Ovarii treated?
Can ovarian cyst cause thyroid problems?
Ovarian cysts are a common cause for gynecological surgery. However, some cysts are a direct result of endocrine disorders and do not require surgery. This report describes an unusual case in which persistent ovarian cysts are associated with primary hypothyroidism in a young woman.
Can struma ovarii reoccur?
Struma ovarii is rare; less than 200 cases have been reported in the medical literature [3, 5]. Malignant struma ovarii is rarer still, with malignancy occurring in less than 5% of cases and metastases highly uncommon [6, 7]. However, recurrence rates vary widely and have been reported from 7.5–35% [4, 6, 8].
Can high TSH cause ovarian cysts?
It is also very rare to come across untreated patients with such high TSH levels. This case also highlights that such patients should be treated as early as possible to avoid complications. There is evidence that supplementation with thyroid hormone can lead to the complete regression of multicystic ovarian cysts.
What is strumal carcinoid of the ovary?
Strumal carcinoid of the ovary is a type of germ-cell tumor characterized by an intimate mixture of thyroid tissue and carcinoid. Fifty patients with this type of tumor ranged in age from 21 to 77 years. The tumors measured up to 26 cm in diameter and were always unilateral.
What is a struma ovarii tumor?
Struma ovarii tumor is a subtype of an ovarian teratoma and is composed entirely or predominantly of thyroid tissue and containing variable-sized follicles with colloid material. Article:
What is the treatment for struma ovarii?
Treatment is with surgical resection. The vast majority of struma ovarii tumors (90-95% 1,5) tend to be benign and therefore carry a good prognosis.
How common is thyrotoxicosis in struma ovarii?
Approximately 5-8% of cases can show symptoms or signs of thyrotoxicosis. Pathology To qualify as a struma ovarii tumors more than 50% of the tumor should be composed of thyroid tissue 7.