scholarly journals Recurrent Struma Ovarii Presented with High Levels of Thyroglobulin

2021 ◽  
Vol 2021 ◽  
pp. 1-4
Author(s):  
Christiana Oikonomou ◽  
Nikol Spathari ◽  
Stavroula Doumoulaki ◽  
Antonella Koutela ◽  
Christos Stagkoglou ◽  
...  
Keyword(s):  
Preoperative Diagnosis ◽  
Incidental Finding ◽  
Thyroid Tissue ◽  
Surgical Excision ◽  
Ovarian Teratoma ◽  
Struma Ovarii ◽  
Childbearing Age ◽  
Blood Tests ◽  
Pelvic Masses ◽  
Common Histological Type

Struma ovarii are rare ovarian tumors, of monodermal germ cell origin, containing predominantly thyroid tissue. They are typically benign unilateral pelvic masses. Among the rare cases of malignancy, the most common histological type is that of the papillary carcinoma. A definite preoperative diagnosis of these tumors is difficult to achieve since most imaging findings are generally nonspecific. A rare exception is the case of synchronous abnormal thyroid blood tests where an ovarian teratoma should be highly suspected, especially when no pathology of the thyroid gland coexists. Surgical excision is the mainstay of treatment. Taking into account that struma ovarii are mainly encountered in patients of a childbearing age, a conservative surgical approach is a reasonable option. We present the case of a 56-year-old woman who was diagnosed with both a primary and recurrent struma ovarii while investigating the incidental finding of elevated blood laboratory levels of the thyroglobulin (Tg).

scholarly journals Metastatic malignant struma ovarii with coexistence of Hashimoto’s thyroiditis

2016 ◽  
Vol 2016 ◽  
Author(s):  
Marco Russo ◽  
Ilenia Marturano ◽  
Romilda Masucci ◽  
Melania Caruso ◽  
Maria Concetta Fornito ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Risk Stratification ◽  
Thyroid Tissue ◽  
Surgical Excision ◽  
Disease Diagnosis ◽  
Ovarian Teratoma ◽  
List Type ◽  
Struma Ovarii ◽  
Malignant Struma Ovarii

Summary Struma ovarii is a rare ovarian teratoma characterized by the presence of thyroid tissue as the major component. Malignant transformation of the thyroidal component (malignant struma ovarii) has been reported in approximately 5% of struma ovarii. The management and follow-up of this unusual disease remain controversial. We report the case of a woman with a history of autoimmune thyroiditis and a previous resection of a benign struma ovarii that underwent hystero-annexiectomy for malignant struma ovarii with multiple papillary thyroid cancer foci and peritoneal involvement. Total thyroidectomy and subsequent radioiodine treatment lead to complete disease remission after 104 months of follow-up. The diagnosis and natural progression of malignant struma ovarii are difficult to discern, and relapses can occur several years after diagnosis. A multidisciplinary approach is mandatory; after surgical excision of malignant struma, thyroidectomy in combination with 131I therapy should be considered after risk stratification in accordance with a standard approach in differentiated thyroid cancer patients. Learning points Malignant struma ovarii is a rare disease; diagnosis is difficult and management is not well defined. Predominant sites of metastasis are adjacent pelvic structures. Thyroidectomy and 131I therapy should be considered after risk stratification in accordance with standard approaches in DTC patients.

THYROID TYPE CARCINOMA ARISING IN STRUMA OVARII. SIX CLINICAL CASES AND REVIEW

2018 ◽  
Vol 64 (6) ◽  
pp. 708-715
Author(s):  
Natalya Severskaya ◽  
Andrey Rodichev ◽  
Aleksey Ilin ◽  
Dmitriy Semin ◽  
Pavel Isaev ◽  
...  
Keyword(s):  
Radioiodine Therapy ◽  
Clinical Course ◽  
Case Reports ◽  
Thyroid Tissue ◽  
Follicular Carcinoma ◽  
Complete Response ◽  
Pelvic Surgery ◽  
Ovarian Teratoma ◽  
Struma Ovarii

Struma ovarii is a rare variant of the mature ovarian teratoma composed of more than 50% thyroid tissue. Thyroid type carcinoma can occur in 5% of struma ovarii. Given the rarity of this pathology, as well as the different clinical course, approaches to the treatment of this disease are controversial. The proposed approaches to treatment vary from ovarian resection to total hysterectomy with bilateral salpingo-oophorectomy and adjuvant therapy. We present here 6 case reports of thyroid type carcinoma in struma ovarii and outcome of patients treated in our clinic. All patients had pelvic surgery of different extent, followed by thyroidectomy and radioiodine therapy. The incidence of metastasis is 67% (4/6), 2 - intraperitoneal metas-tases, 2 - bone metastases. Among patients with metastases, 2 have reached a complete response, one with a good response continues treatment, one had progression. The follow-up period is 1 to 15 years (median 4 years). One patient with follicular carcinoma died of progression 8 years after diagnosis. The remaining patients are alive.

scholarly journals Malignant Struma Ovarii with Concurrent Thyroid Cancer: Outcomes during and after Pregnancy

2021 ◽  
pp. 1-5
Author(s):  
Sara Donato ◽  
Helder Simões ◽  
Valeriano Leite
Keyword(s):  
Thyroid Cancer ◽  
Thyroid Tissue ◽  
Pelvic Mass ◽  
Pregnant Patient ◽  
Whole Body ◽  
Ovarian Teratoma ◽  
Struma Ovarii ◽  
Pelvic Mri ◽  
Biochemical Evidence

<b><i>Introduction:</i></b> Struma ovarii (SO) is a rare ovarian teratoma characterized by the presence of thyroid tissue in more than 50% of the tumor. Malignant transformation is rare and the most common associated malignancy is papillary thyroid carcinoma (PTC). Pregnancy may represent a stimulus to differentiated thyroid cancer (DTC) growth in patients with known structural or biochemical evidence of disease, but data about malignant SO evolution during pregnancy are rare. We present the first reported case of a pregnant patient with malignant SO and biochemical evidence of disease. <b><i>Case Presentation:</i></b> A previously healthy 35-year-old female diagnosed with a suspicious left pelvic mass on routine ultrasound was submitted to laparoscopic oophorectomy which revealed a malignant SO with areas of PTC. A 15-mm thyroid nodule (Bethesda V in the fine-needle aspiration cytology) was detected by palpation and total thyroidectomy was performed. Histology revealed a 15 mm follicular variant of PTC (T1bNxMx). Subsequently, she received 100 mCi of radioactive iodine therapy (RAIT) with the whole-body scan showing only moderate neck uptake. Her suppressed thyroglobulin (Tg) before RAI was 1.1 ng/mL. She maintained biochemical evidence of disease, with serum Tg levels of 7.6 ng/mL. She got pregnant 14 months after RAIT, and during pregnancy, Tg increased to 21.5 ng/mL. After delivery, Tg decreased to 14 ng/mL but, 6 months later, rose again and reached 31.9 ng/mL on the last follow-up visit. TSH was always suppressed during follow-up. At the time of SO diagnosis, a chest computed tomography scan showed 4 bilateral lung micronodules in the upper lobes which were nonspecific, and 9 months after diagnosis, a pelvic MRI revealed a suspicious cystic nodule located on the oophorectomy bed. These lung and pelvic nodules remained stable during follow-up. Neck ultrasonography, abdominal MRI, and fluorodeoxyglucose-positron emission tomography showed no suspicious lesions. <b><i>Discussion/Conclusion:</i></b> As for DTC, pregnancy seems to represent a stimulus to malignant SO growth. This can be caused by the high levels of estrogen during pregnancy that may bind to receptors in malignant cells and/or by the high levels of hCG which is known to stimulate TSH receptors.

scholarly journals Struma ovarii: two case reports of a rare teratoma of the ovary

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
Obed Rockson ◽  
Christine Kora ◽  
Abdelbassir Ramdani ◽  
Aabdi Basma ◽  
Tariq Bouhout ◽  
...  
Keyword(s):  
Histopathological Examination ◽  
Case Reports ◽  
Thyroid Tissue ◽  
Ovarian Teratoma ◽  
Histopathological Study ◽  
Histopathological Diagnosis ◽  
Struma Ovarii ◽  
Rare Type ◽  
Benign Condition ◽  
First Case

Abstract Struma ovarii is an extremely rare type of ovarian teratoma distinguished by the unusual presence of thyroid tissue. It is usually a benign condition; however, malignant transformation is sometimes detected. The diagnosis relies on histopathological examination and is infrequently made on routine investigations. We report two cases of struma ovarii: one benign and the other malignant. The first case involved a 27-year-old woman who underwent a right ovarian cystectomy for an incidental ultrasonographic finding of a solid right adnexal mass. The diagnosis of a benign struma was made after histopathological study. The second case involved a 68-year-old woman who underwent a right salpingo-oophorectomy for a right ovarian bulky mass and the histopathological diagnosis was consistent with that of a malignant struma. We examine the challenges involved in the diagnosis and management of this rare entity.

Occurrence of struma ovarii among women operated for ovarian teratoma

2011 ◽  
Vol 152 (24) ◽  
pp. 964-966
Author(s):  
Péter Sámuel Nagy ◽  
Csaba Vass ◽  
Zoltán Tóth
Keyword(s):  
Tumor Size ◽  
Clinical Symptoms ◽  
Thyroid Tissue ◽  
Morphological Characteristics ◽  
Ovarian Teratoma ◽  
Rare Tumor ◽  
Struma Ovarii ◽  
Hormonal Activity ◽  
Diagnostic Efficacy ◽  
Main Symptom

Ovarian monodermal teratoma containing thyroid tissue is a rare tumor. Authors reviewed the records of 94 patients operated for ovarian teratoma in their department between 1986 and 2002, of which 3 patients proved to have struma ovarii. They found that the 3 patients had highly variable clinical symptoms and morphological characteristics including tumor size, pain as main symptom, and the presence or absence of ascites and hormonal activity. It is concluded that struma ovarii appears to be poorly diagnosed, but an extensive histological examination may increase the diagnostic efficacy. Orv. Hetil., 2011, 152, 964–966.

scholarly journals A Hormonally Active Malignant Struma Ovarii

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Carolina Lara ◽  
Dalia Cuenca ◽  
Latife Salame ◽  
Rafael Padilla-Longoria ◽  
Moisés Mercado
Keyword(s):  
Thyroid Hormone ◽  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Thyroid Tissue ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Ovarian Teratoma ◽  
Struma Ovarii ◽  
Papillary Thyroid ◽  
Malignant Struma Ovarii

Struma ovarii is a rare monodermal variant of ovarian teratoma that contains at least 50% thyroid tissue. Less than 8% of struma ovarii cases present with clinical and biochemical evidence of thyrotoxicosis due to ectopic production of thyroid hormone and only 5% undergo malignant transformation into a papillary thyroid carcinoma. Only isolated cases of hormonally active papillary thyroid carcinoma developing within a struma ovarii have been reported in the literature. We report the case of a 36-year-old woman who presented with clinical signs and symptoms of hyperthyroidism as well as a left adnexal mass, which proved to be a thyroid hormone-producing, malignant struma ovarii.

scholarly journals Struma Ovarii with Papillary Thyroid Carcinoma

2011 ◽  
Vol 1 ◽  
pp. 44 ◽  
Author(s):  
Daniel M. Alvarez ◽  
Victor Lee ◽  
Shweta Bhatt ◽  
Vikram S. Dogra
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Thyroid Tissue ◽  
Ovarian Teratoma ◽  
Struma Ovarii ◽  
Pathological Features ◽  
Papillary Thyroid ◽  
Normal Thyroid ◽  
Uncommon Condition ◽  
Malignant Changes

Struma ovarii is an uncommon condition, in which thyroid tissue is the predominant or exclusive element in an ovarian teratoma. Thyroid tissue may demonstrate the same spectrum of pathological features as in the normal thyroid including benign and malignant changes. We present a case of papillary thyroid carcinoma arising in a struma ovarii of the left ovary in a 21-year-old female.

scholarly journals MON-440 Unusual Case of Metastatic Struma Ovarii Diagnosed at the Time of Hysterectomy

2020 ◽  
Vol 4 (Supplement_1) ◽  
Author(s):  
Jennifer Merrill ◽  
Sara Ahmadi ◽  
Jennifer Perkins
Keyword(s):  
Thyroid Cancer ◽  
Total Thyroidectomy ◽  
Mature Teratoma ◽  
Thyroid Tissue ◽  
Whole Body ◽  
Ovarian Teratoma ◽  
Thyroid Ultrasound ◽  
Struma Ovarii ◽  
Follicular Variant ◽  
Malignant Struma Ovarii

Abstract Introduction: Struma ovarii is rare ovarian teratoma composed of more than 50% mature thyroid tissue, which can rarely transform to malignancy. There are fewer than 200 cases reported and no established treatment approach. We present a case of metastatic malignant struma ovarii. Case Presentation: A 41 year old female was diagnosed with metastatic papillary thyroid carcinoma (PTC) after it was found on uterine histopathology. History was notable for remote left ovarian cystectomy of a mature teratoma with prominent thyroid component. She had no personal or family history of craniocervical radiation or thyroid cancer. Eight years later, she had a total hysterectomy for menorrhagia. Pathology showed subcentimeter serosal deposits of follicular variant PTC, staining positive for thyroglobulin, CK19, and HBME1. Endometrial and cervical pathology were normal; the myometrium had many leiomyomata. Post-hysterectomy TSH was 2.3 (0.34 - 5.66 µIU/mL), and thyroglobulin 44.3 (&lt;=33.0 ng/mL). Thyroid ultrasound showed a 7 mm isoechoic nodule without lymphadenopathy. Whole body PET/CT showed multiple hypermetabolic masses in the pelvic peritoneum and liver. The right ovary had many cystic lesions and was enlarged to 5.3 x 4.5 cm. She underwent partial hepatectomy, oophorectomy, salpingectomy, and omental resection with no residual disease. Pathology showed follicular variant PTC in both ovaries, peritoneum, colonic mesentery, and omentum. Thyroglobulin fell to 6.9 ng/mL 3 weeks later. A 0.2 cm focus of follicular variant PTC with capsular invasion was found on pathology after total thyroidectomy. She underwent radioiodine ablation with 150 mCi. Postablative scan showed residual activity in the thyroid bed and right hemipelvis, but no new foci of activity. CT abdomen showed resolution of perihepatic lesions and thyroglobulin declined further to 0.5 ng/mL. Discussion: A low risk of recurrence (7.5%) has been reported in patients with malignant struma ovarii, with survival rates of 96.7% at 5 years and 84.9% at 20 years, despite a variety of surgical and adjuvant management strategies. Unilateral cystectomy, unilateral salpingo-oophorectomy, or total abdominal hysterectomy and bilateral salpingo-oophorectomy may be sufficient for patients with well differentiated thyroid cancer arising in struma ovarii without metastases. Thyroid ultrasound should be performed to exclude primary thyroid malignancy. Patients with distant metastases may benefit from aggressive treatment including resection of gross abdominal and pelvic disease and total thyroidectomy to facilitate radioactive iodine ablation and surveillance for recurrence. Conclusion: Due to its rarity, there is no consensus on optimal treatment of malignant struma ovarii. More research in this field is warranted.

Cystic struma ovarii presenting as pseudo-Meigs' syndrome with elevated CA125 levels. A case report and review of the literature

2008 ◽  
Vol 18 (2) ◽  
pp. 372-375 ◽  
Author(s):  
S. Mitrou ◽  
S. Manek ◽  
S. Kehoe
Keyword(s):  
Differential Diagnosis ◽  
English Literature ◽  
Thyroid Tissue ◽  
Pelvic Mass ◽  
Ovarian Teratoma ◽  
Struma Ovarii ◽  
Review Of The Literature ◽  
Pleural Effusions ◽  
Disease Free ◽  
Radiologic Evidence

Struma ovarii is a rare ovarian teratoma consisted predominantly of mature thyroid tissue. Although the vast majority of strumas are benign, they can present mimicking malignancy. We report a case of a postmenopausal woman who presented with a large pelvic mass, ascites, and high CA125 levels. Further investigation confirmed the existence of bilateral pleural effusions. The patient underwent laparotomy, and histology revealed a benign struma ovarii. Twelve months after the removal of the tumor, the patient remained disease free, with no clinical or radiologic evidence of effusion, and normal CA125 levels. This is only the fifth case in the English literature of a benign struma ovarii presenting as pseudo-Meigs' syndrome with elevated CA125. Struma ovarii should be included in the differential diagnosis of a pelvic mass that presents with ascites, hydrothorax, and elevated tumor markers.

Malignant struma ovarii with late recurrence harbouring high microsatellite instability

2021 ◽  
Vol 14 (6) ◽  
pp. e242081
Author(s):  
Su Yun Chung ◽  
Jeffrey Chi ◽  
Jennifer Park ◽  
Veena John ◽  
Nagashree Seetharamu
Keyword(s):  
Microsatellite Instability ◽  
Treatment Guidelines ◽  
Thyroid Tissue ◽  
Late Recurrence ◽  
Ovarian Teratoma ◽  
Molecular Testing ◽  
Struma Ovarii ◽  
Long Latency ◽  
First Recurrence ◽  
Cell Death Protein

Struma ovarii (SO) is a rare ovarian teratoma containing abundant mature thyroid tissue. Malignant transformation is even less common and distant metastasis is documented in about 5%–10%. The time from diagnosis of primary SO to metastatic disease varies. As malignant SO is rare, there are no uniform diagnostic criteria or treatment guidelines. Management is usually extrapolated from that of thyroid malignancy. We report a patient who relapsed 12 years from the initial diagnosis and metastasised to the lungs 5 years after the first recurrence. Our patient was treated with total thyroidectomy followed by radioactive iodine, and retreated on progression in the lungs. The tumour harboured high microsatellite instability and treatment with programmed cell death protein 1 inhibitor was initiated. This case shows the long latency of SO with the rare phenomenon of metastasis. It also highlights the importance of molecular testing for rare cancers such as this.

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