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Chen M, Liao S, Cao Y, Mao M, Jia X, Zhang S, Xu Y. Benign Brenner tumor of the ovary: two-dimensional and contrast-enhanced ultrasound features-a retrospective study from a single center. Front Oncol 2024; 14:1337806. [PMID: 38525416 PMCID: PMC10959004 DOI: 10.3389/fonc.2024.1337806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/08/2024] [Indexed: 03/26/2024] Open
Abstract
Objective Benign Brenner tumor (BBT) is a rare ovarian tumor, and there are few discrete reports about its manifestation in an ultrasound. This study sought to investigate the two-dimensional (2D) and contrast-enhanced ultrasound (CEUS) features of this entity. Methods This is a retrospective single-center study. The clinical manifestations, laboratory examination, and ultrasound data of 25 female patients with BBT were confirmed by pathology when they underwent 2D and/or CEUS examination at Ningbo First Hospital from January 2012 to June 2023. The ultrasound findings of the patients were analyzed using the terminology of the International Organization for the Analysis of Ovarian Tumor and were read by two senior sonographers who reached an agreement. Results Among the all 25 patients, most of them were unilateral, and only one patient was bilateral. Thus, 26 lesions were found: 44.0% (11/25) were in the left and 52.0% (13/25) were in the right. Moreover, 53.84% (14/26) were solid lesions, 15.38% (4/26) were mixed lesions, and 26.92% (7/26) were cystic lesions. Among the solid-type patients, 42.85% (6/14) of the cases were with calcification. Upon laboratory examination, 12.0% (3/25) of the patients had high carbohydrate antigen 125 (CA-125) level, and 19.04% (4/21) of the patients had an elevated carbohydrate antigen724 (CA-724) level in the serum tumor markers. In the hormone test, 14.28% (3/21) were found to have a high postmenopausal estrogen level and 14.28%(3/21) were found to have a high level of follicle-stimulating hormone (FSH). One patient with complex manifestations and three with solid manifestations were examined by CEUS to observe the microcirculation perfusion of the tumor. One with solid and cystic separation was rapidly hyperenhanced and cleared, and the filling subsided faster than the uterus. The postoperative pathological diagnosis was benign Brenner tumor with mucinous cystadenoma. The other three cases were solid adnexal lesions, which showed isoenhancement on CEUS and disappeared slowly, synchronizing with the uterus. The CEUS results were considered as benign tumors and confirmed by pathology. Conclusions BBT can show ovarian cystic, mixed cystic and solid type, and solid echo in 2D ultrasound. Unilateral ovarian fibrosis with punctate calcification is an important feature of BBT in 2D ultrasound. However, for solid adnexal masses and mixed cystic and solid masses with unclear diagnosis, if CEUS shows isoenhancement or hyperenhancement, the possibility of BBT cannot be excluded.
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Affiliation(s)
- Mei Chen
- Department of Ultrasonography, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Shusheng Liao
- Department of Ultrasound, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yong Cao
- Department of Ultrasonography, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Meiya Mao
- Department of Gynecology, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Xiupeng Jia
- Department of Histology, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Shengmin Zhang
- Department of Ultrasonography, Ningbo First Hospital, Ningbo, Zhejiang, China
| | - Youfeng Xu
- Department of Ultrasonography, Ningbo First Hospital, Ningbo, Zhejiang, China
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Yu Q, Zhao Q, Su Y, Xiong K, Lu Y, Zhang L, Fang H. Borderline Brenner tumor with abnormally high serum level of carbohydrate antigen 199: a rare case report and literature review. Ir J Med Sci 2023; 192:2071-2075. [PMID: 36409423 DOI: 10.1007/s11845-022-03203-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 10/25/2022] [Indexed: 11/22/2022]
Abstract
Ovarian Brenner tumor with abnormally increased serum carbohydrate antigen 19-9 (CA19-9) level is extremely rare. A 70-year-old woman with abnormally elevated serum CA199 (1289 U/ml) found in routine physical examination. Pelvic CT and MRI scan revealed a large mass with large patches of calcification in the right adnexal area, and the patient achieved total hysterectomy and bilateral adnexectomy. Grossly, the right ovary had a solid enlargement of about 7.0 cm × 6.0 cm × 5.0 cm with irregular nodules and smooth surface and the cut surface of the mass showed that the tumor is cystic and solid. Microscopically, the tumor showed a background of fibrous tissue hyperplasia with nested and adenoid cell clusters with uniform cell size and clear boundaries. The cells were translucent with eosinophilic cytoplasm and calcification. Immunohistochemical staining showed CK7, CA125, and P63 presented diffusely strongly positive staining, while negativity for CK20, GATA3, AR, P53, and CgA. Ki-67 showed weak positive staining, about 1%. The serum CA199 level decreased significantly on the 5th day after surgery. Postoperative pathology and immunohistochemistry confirmed borderline Brenner tumor. This is the first to report a case of borderline Brenner tumor with an abnormally high serum level of CA199 before surgery. In clinical practice, the possibility of ovarian Brenner tumor should be considered when abnormal elevation of serum CA199 level cannot be reasonably explained.
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Affiliation(s)
- Qianwei Yu
- Department of Gastroenterology, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, 230601, China
- Center of Gut Microbiota, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Qian Zhao
- Department of Gastroenterology, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, 230601, China
- Center of Gut Microbiota, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Yuan Su
- Department of Gastroenterology, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, 230601, China
- Center of Gut Microbiota, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Kangwei Xiong
- Department of Gastroenterology, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, 230601, China
- Center of Gut Microbiota, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Yan Lu
- Department of Gastroenterology, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, 230601, China
- Center of Gut Microbiota, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Lijiu Zhang
- Department of Gastroenterology, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, 230601, China
- Center of Gut Microbiota, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Haiming Fang
- Department of Gastroenterology, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, 230601, China.
- Center of Gut Microbiota, the Second Hospital of Anhui Medical University, Hefei, Anhui Province, China.
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Shiravani Z, Bahrami S, Najib FS, Alavi SMA. Borderline Brenner tumor of the ovary with mucinous metaplasia: A case report. Clin Case Rep 2023; 11:e7967. [PMID: 37780922 PMCID: PMC10533387 DOI: 10.1002/ccr3.7967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/18/2023] [Accepted: 09/14/2023] [Indexed: 10/03/2023] Open
Abstract
Key Clinical Message To date, there have been disparate reports regarding borderline forms of Brenner tumors, while research on concomitant mucinous proliferation is even more irregular; however, it has been observed that proper diagnosis and treatment have proven to have a favorable prognosis on the aforementioned tumor. Abstract Brenner tumor is a rare epithelial ovarian neoplasm responsible for 2%-3% of all ovarian tumors. These tumors are usually asymptomatic and can usually be found incidentally in pathological studies. They can also manifest themselves as abdominal pain or abnormal uterine bleeding. A 41-year-old female with a history of anemia referred to the hospital suffering from abdominal pain for at least 1 month before the referral period. Physical examination revealed a mobile palpable mass in the left lower abdomen. Ultrasound and pelvic computed tomography scan (CT scan) revealed a left ovarian complex cyst. Left salpingo-oophorectomy was performed on the patient, and the cyst was removed. Pathological findings revealed an atypical proliferative Brenner tumor with mucinous metaplasia. To date, there have been disparate reports regarding borderline forms of Brenner tumors, while research on concomitant mucinous proliferation is even more irregular; however, it has been observed that proper diagnosis and treatment have proven to have a favorable prognosis on the aforementioned tumor.
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Affiliation(s)
- Zahra Shiravani
- Department of Obstetrics and GynecologyDivision of Oncology GynecologySchool of MedicineShiraz University of Medical SciencesShirazIran
- Maternal‐Fetal Medicine Research CenterShiraz University of Medical SciencesShirazIran
| | - Samaneh Bahrami
- Department of Obstetrics and GynecologyDivision of Oncology GynecologySchool of MedicineShiraz University of Medical SciencesShirazIran
- Department of Obstetrics and GynecologyDivision of PerinatologyImam Khomeini HospitalAhvaz Jundishapur University of Medical SciencesAhvazIran
| | - Fateme Sadat Najib
- Department of Obstetrics and GynecologyDivision of Oncology GynecologySchool of MedicineShiraz University of Medical SciencesShirazIran
- Infertility Research CenterShiraz University of Medical SciencesShirazIran
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Suarez-Weiss KE, Sadowski EA, Zhang M, Burk KS, Tran VT, Shinagare AB. Practical Tips for Reporting Adnexal Lesions Using O-RADS MRI. Radiographics 2023; 43:e220142. [PMID: 37319025 DOI: 10.1148/rg.220142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The Ovarian-Adnexal Reporting and Data System (O-RADS) MRI risk stratification system provides a standardized lexicon and evidence-based risk score for evaluation of adnexal lesions. The goals of the lexicon and risk score are to improve report quality and communication between radiologists and clinicians, reduce variability in the reporting language, and optimize management of adnexal lesions. The O-RADS MRI risk score is based on the presence or absence of specific imaging features, including the lipid content, enhancing solid tissue, number of loculi, and fluid type. The probability of malignancy ranges from less than 0.5% when there are benign features to approximately 90% when there is solid tissue with a high-risk time-intensity curve. This information can aid in optimizing management of patients with adnexal lesions. The authors present an algorithmic approach to the O-RADS MRI risk stratification system and highlight key teaching points and common pitfalls. © RSNA, 2023 Quiz questions for this article are available in the supplemental material.
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Affiliation(s)
- Krista E Suarez-Weiss
- From the Department of Radiology, Abdominal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St, Boston, Mass 02115 (K.E.S.W., K.S.B., A.B.S.); Department of Radiology, University of Wisconsin Health University Hospital, Madison, Wis (E.A.S.); and Department of Radiology, McGill University Health Centre, Montreal, Quebec, Canada (M.Z., V.T.T.)
| | - Elizabeth A Sadowski
- From the Department of Radiology, Abdominal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St, Boston, Mass 02115 (K.E.S.W., K.S.B., A.B.S.); Department of Radiology, University of Wisconsin Health University Hospital, Madison, Wis (E.A.S.); and Department of Radiology, McGill University Health Centre, Montreal, Quebec, Canada (M.Z., V.T.T.)
| | - Michelle Zhang
- From the Department of Radiology, Abdominal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St, Boston, Mass 02115 (K.E.S.W., K.S.B., A.B.S.); Department of Radiology, University of Wisconsin Health University Hospital, Madison, Wis (E.A.S.); and Department of Radiology, McGill University Health Centre, Montreal, Quebec, Canada (M.Z., V.T.T.)
| | - Kristine S Burk
- From the Department of Radiology, Abdominal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St, Boston, Mass 02115 (K.E.S.W., K.S.B., A.B.S.); Department of Radiology, University of Wisconsin Health University Hospital, Madison, Wis (E.A.S.); and Department of Radiology, McGill University Health Centre, Montreal, Quebec, Canada (M.Z., V.T.T.)
| | - Vi T Tran
- From the Department of Radiology, Abdominal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St, Boston, Mass 02115 (K.E.S.W., K.S.B., A.B.S.); Department of Radiology, University of Wisconsin Health University Hospital, Madison, Wis (E.A.S.); and Department of Radiology, McGill University Health Centre, Montreal, Quebec, Canada (M.Z., V.T.T.)
| | - Atul B Shinagare
- From the Department of Radiology, Abdominal Imaging and Intervention, Brigham and Women's Hospital, 75 Francis St, Boston, Mass 02115 (K.E.S.W., K.S.B., A.B.S.); Department of Radiology, University of Wisconsin Health University Hospital, Madison, Wis (E.A.S.); and Department of Radiology, McGill University Health Centre, Montreal, Quebec, Canada (M.Z., V.T.T.)
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Kim HJ, Kim KA, Chun Y, Park YS, Song MJ, Choi JW. Clear Cell Borderline Tumor of the Ovary: A Case Report. JOURNAL OF THE KOREAN SOCIETY OF RADIOLOGY 2023; 84:692-697. [PMID: 37324997 PMCID: PMC10265245 DOI: 10.3348/jksr.2022.0118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/12/2022] [Accepted: 10/02/2022] [Indexed: 06/17/2023]
Abstract
Clear cell borderline ovarian tumor (CCBOT) is quite rare, and only a few cases of CCBOT have been reported. Unlike most borderline ovarian tumors, CCBOTs appear solid because they are almost always pathologically adenofibromatous. Herein, we report the MRI findings of a CCBOT discovered in a 22-year-old female.
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Maturen KE, Shampain KL, Roseland ME, Sakala MD, Zhang M, Stein EB. Malignant Epithelial Tumors of the Ovary. Radiol Clin North Am 2023; 61:563-577. [PMID: 37169424 DOI: 10.1016/j.rcl.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Epithelial ovarian neoplasms (EON) constitute the majority of ovarian cancers. Among EON, high-grade serous carcinoma (HGSC) is the most common and most likely to present at an advanced stage. Radiologists should recognize the imaging features associated with HGSC, particularly at ultrasound and MR imaging. Computed tomography is used for staging and to direct care pathways. Peritoneal carcinomatosis is common and does not preclude surgical resection. Other less common malignant EON have varied appearances, but share a common correlation between the amount of vascularized solid tissue and the likelihood of malignancy.
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Brenner Tumor of the Ovary: A 10-Year Single Institution Experience and Comprehensive Review of the Literature. Med Sci (Basel) 2023; 11:medsci11010018. [PMID: 36810485 PMCID: PMC9944520 DOI: 10.3390/medsci11010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/09/2023] Open
Abstract
Brenner tumors (BTs) are surface-epithelial stromal cell tumors that are categorized by the World Health Organization as benign, borderline, and malignant. Due to the rarity of BTs, the published literature on these tumors is comprised primarily of case reports and small retrospective studies. We performed a pathology database review spanning the last ten years at our institution revealing nine reported benign BTs. We collected the clinical and pathological data of patients associated with those BTs, describing the clinical presentation and imaging results, and assessing the possible risk factors associated with them. The average age at diagnosis was 58 years. BTs were discovered incidentally in 7/9 cases. The tumor was multifocal and bilateral in 1/9 cases and ranged in size from 0.2 cm to 7.5 cm. Associated Walthard rests were found in 6/9 cases and transitional metaplasia of surface ovarian and/or tubal epithelium was found in 4/9 cases. One patient had an associated mucinous cystadenoma in the ipsilateral ovary. Another patient had an associated mucinous cystadenoma in the contralateral ovary. In conclusion, we found that Walthard rests and transitional metaplasia are common findings in association with BTs. Additionally, pathologists and surgeons need to be aware of the association between mucinous cystadenomas and BTs.
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Wu M, Tang Q, Cai S, Zhu L, Lin C, Guan Y, Rao S, Zhou J. Accuracy and reproducibility of the O-RADS MRI risk stratification system based on enhanced non-DCE MRI in the assessment of adnexal masses. Eur J Radiol 2023; 159:110670. [PMID: 36584564 DOI: 10.1016/j.ejrad.2022.110670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 12/11/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Evaluation of the diagnostic performance and reproducibility of the Ovarian-Adnexal Reporting and Data System (O-RADS) Magnetic Resonance Imaging (MRI) risk stratification system based on enhanced non-dynamic contrast-enhanced (non-DCE) MRI in the diagnosis of adnexal masses. METHODS Patients who underwent conventional pelvic enhanced non-DCE MRI examination within one month prior to surgery formed the study population. Two experienced radiologists independently evaluated the images and assigned a score according to the O-RADS MRI risk stratification system. One of the radiologists reviewed the images and reassigned the scores after three months. Intra- and inter-observer agreement was evaluated with the k coefficient value. The adnexal masses that attained scores between 1 and 3 were considered benign, while those with scores of 4 or 5 were considered malignant. Analyses were conducted to determine the sensitivity, specificity, positive and negative predictive values, and receiver operating characteristic (ROC) curve, which were then used for evaluating the diagnostic efficacy of the developed system based on enhanced non-DCE MRI scan. The reference standard was histology. RESULTS A total of 308 patients (mean age: 42.09 ± 12.42 years, age range: 20-84 years) were enrolled in the study. Among the 362 adnexal masses from the included patients, there were 320 benign masses and 42 malignant masses. In the case of three readers, there were no malignant tumors scored 1-2. The O-RADS MRI score ≥ 4 was associated with malignancy resulted in a good diagnostic efficacy with the areas under the curve (AUC) values of 0.918 (95 % CI, 0.864-0.972), 0.905 (95 % CI, 0.842-0.968), and 0.882 (95 % CI, 0.815-0.950), the sensitivity values of 90.5 % (95 % CI, 87.5-93.5 %), 85.7 % (95 % CI, 82.1-89.3 %), and 83.3 % (95 % CI, 79.5-87.2 %), and the specificity values of 93.1 % (95 % CI, 90.5-95.7 %), 95.3 % (95 % CI, 93.1-97.5 %), and 93.1 % (95 % CI, 90.5-95.7 %) obtained for the three readers, respectively. Excellent intra-observer agreement and inter-observer agreement were observed with the k values of 0.883 (95 % CI, 0.814-0.952) and 0.848 (95 % CI, 0.770-0.926), respectively. CONCLUSIONS The O-RADS MRI risk stratification system based on enhanced non-DCE MRI scans exhibited high accuracy and reproducibility in the prediction of adnexal masses malignancy. Enhanced non-DCE MRI scan may offer an alternative diagnostic tool when DCE is not possible.
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Affiliation(s)
- Minrong Wu
- Department of Radiology, Zhongshan Hospital (Xiamen), Fudan University, 668 Jinhu Road, Huli District, Xiamen City 361015, Fujian Province, People's Republic of China
| | - Qiying Tang
- Department of Radiology, Zhongshan Hospital (Xiamen), Fudan University, 668 Jinhu Road, Huli District, Xiamen City 361015, Fujian Province, People's Republic of China
| | - Songqi Cai
- Department of Radiology, Zhongshan Hospital, Fudan University, 180 Fenlin Road, Shanghai, Xuhui District, 200032, People's Republic of China
| | - Liuhong Zhu
- Department of Radiology, Zhongshan Hospital (Xiamen), Fudan University, 668 Jinhu Road, Huli District, Xiamen City 361015, Fujian Province, People's Republic of China
| | - Chong Lin
- Department of Radiology, Zhongshan Hospital (Xiamen), Fudan University, 668 Jinhu Road, Huli District, Xiamen City 361015, Fujian Province, People's Republic of China
| | - Yingying Guan
- Department of Pathology, Zhongshan Hospital (Xiamen), Fudan University, 668 Jinhu Road, Huli District, Xiamen City 361015, Fujian Province, People's Republic of China
| | - Shengxiang Rao
- Department of Radiology, Zhongshan Hospital, Fudan University, 180 Fenlin Road, Shanghai, Xuhui District, 200032, People's Republic of China.
| | - Jianjun Zhou
- Department of Radiology, Zhongshan Hospital (Xiamen), Fudan University, 668 Jinhu Road, Huli District, Xiamen City 361015, Fujian Province, People's Republic of China; Department of Radiology, Zhongshan Hospital, Fudan University, 180 Fenlin Road, Shanghai, Xuhui District, 200032, People's Republic of China; Department of Radiology, Xiamen Clinical Research Center for Cancer Therapy, 668 Jinhu Road, Huli District, Xiamen City 361015, Fujian Province, People's Republic of China.
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Abe T, Saida T, Fujieda K, Inoue K, Satoh T, Nakajima T. A case of Pseudo-Meigs' syndrome due to Brenner tumor. Radiol Case Rep 2023; 18:1349-1352. [PMID: 36712189 PMCID: PMC9873576 DOI: 10.1016/j.radcr.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/22/2023] Open
Abstract
A 65-year-old woman with suspected ascites-associated abdominal distention had elevated CA125 levels. Contrast-enhanced computed tomography to search for the cause of the ascites showed bilateral pleural effusions, ascites, and an ovarian tumor. On magnetic resonance imaging the tumor exhibited a lobulated structure and markedly low signal intensity on both T1- and T2-weighted imaging, with no restrictions on diffusion-weighted images. Progressive enhancement was observed at tumor margins. Meigs syndrome due to fibroma was suspected, and total hysterectomy, bilateral salpingo-oophorectomy, and partial omentectomy were performed. Postoperatively, the pleural effusion and ascites resolved promptly without specific treatment. On pathological examination, the ovarian tumor was diagnosed as a benign Brenner tumor with scattered nests of transitional epithelium within a large amount of stroma. Based on the clinical course, the patient was diagnosed with pseudo-Meigs' syndrome due to a Brenner tumor.
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Affiliation(s)
- Tetsuya Abe
- Department of Radiology, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Tsukasa Saida
- Department of Radiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan,Corresponding author.
| | - Kaoru Fujieda
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Kei Inoue
- Department of Radiology, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba, Ibaraki, 305-8576, Japan
| | - Toyomi Satoh
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Takahito Nakajima
- Department of Radiology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
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MR Imaging of Epithelial Ovarian Neoplasms Part I: Benign and Borderline. Magn Reson Imaging Clin N Am 2022; 31:43-52. [DOI: 10.1016/j.mric.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Brenner tumors are rare ovarian neoplasms composed of ovarian transition cells surrounded by dense fibrous tissue. Most of them are small tumors (<2 cm), detected incidentally in asymptomatic women. Its predominantly fibrous content results in relatively low signal on T2 weighted images, establishing differential diagnosis with ovarian fibroma and thecoma. Their imaging features are very similar, the differentiation is based on secondary characteristics, such as signs or symptoms of estrogen excess and the presence of a second ovarian neoplasm, which has been reported in up to 30% of patients with Brenner tumor. Although originally thought to be universally benign, there have been scattered reports in the past decades of borderline and malignant forms of Brenner tumors.
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Affiliation(s)
| | - Ana Félix
- Instituto Portugues de Oncologia de Lisboa Francisco Gentil, Lisbon, Portugal
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