Two rare cases of benign struma ovarii with malignant recurrence.

IF 0.7 Q4 ENDOCRINOLOGY & METABOLISM
Kanella Kantreva, Stavroula A Paschou, Katerina Stefanaki, Kanella Pappa, Paraskevi Kazakou, Dionysios Vrachnis, Evangelia Kavoura, Kitty Pavlakis, Eirini Giovannopoulou, Konstantinos Lathouras, Maria Alevizaki, Katerina Saltiki
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Abstract

Summary: Struma ovarii is an ovarian teratoma that comprises 2-5% of all ovarian teratomas. Malignant transformation of struma ovarii occurs in less than 5% of all cases, and metastatic disease is even rarer. We report two cases initially diagnosed with benign struma ovarii that presented malignant transformation, specifically highly differentiated follicular carcinoma of the ovary (HDFCO), some years after the first diagnosis. Case 1 concerns a 37-year-old female featuring HDFCO of the right ovary with multiple metastatic foci, who was diagnosed with benign struma ovarii 14 years ago. Case 2 concerns a 26-year-old female diagnosed with HDFCO of the left ovary. This patient was initially diagnosed with benign struma ovarii 6 years ago that recurred 4 years after the diagnosis. Both patients were treated with surgery, adjunctive total thyroidectomy, and radioactive iodine (131I) therapy.

Learning points: Malignant transformation of struma ovarii is very rare (<5%). Diagnosis of HDFCO without extra ovarian dissemination is difficult due to the resemblance of its histological appearance with normal thyroid tissue. There is no consensus on the postoperative treatment of malignant struma ovarii (MSO). Clinical and histological features of MSO should be assessed for the postoperative treatment decisions. TSH suppression and thyroglobulin level measurements are necessary for patient follow-up.

两例罕见的卵巢良性肿物恶性复发病例。
摘要:卵巢畸胎瘤是一种卵巢畸胎瘤,占所有卵巢畸胎瘤的 2-5%。在所有病例中,卵巢畸胎瘤恶变的发生率不到 5%,而转移性疾病则更为罕见。我们报告了两例最初被诊断为良性卵巢畸胎瘤的病例,这两例病例在首次诊断数年后出现恶性转化,特别是卵巢高分化滤泡癌(HDFCO)。病例 1 涉及一名 37 岁女性,右侧卵巢 HDFCO 并伴有多个转移灶,14 年前诊断为良性卵巢肿。病例 2 涉及一名 26 岁女性,诊断为左侧卵巢 HDFCO。该患者最初在 6 年前被诊断为良性卵巢肿,确诊 4 年后复发。两名患者均接受了手术、辅助性甲状腺全切除术和放射性碘(131I)治疗:学习要点:卵巢肿的恶性转化非常罕见(见图 1)。
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来源期刊
CiteScore
1.50
自引率
0.00%
发文量
142
审稿时长
9 weeks
期刊介绍: Endocrinology, Diabetes & Metabolism Case Reports publishes case reports on common and rare conditions in all areas of clinical endocrinology, diabetes and metabolism. Articles should include clear learning points which readers can use to inform medical education or clinical practice. The types of cases of interest to Endocrinology, Diabetes & Metabolism Case Reports include: -Insight into disease pathogenesis or mechanism of therapy - Novel diagnostic procedure - Novel treatment - Unique/unexpected symptoms or presentations of a disease - New disease or syndrome: presentations/diagnosis/management - Unusual effects of medical treatment - Error in diagnosis/pitfalls and caveats
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