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ovary teratoma

Nellihela Leel, Hemanshoo S Thakkar, David Drake, Nordeen Bouhadiba
Anti-N-methyl D-aspartate receptor (NMDAR) encephalitis is a paraneoplastic, immune-mediated encephalopathy with a known association with ovarian teratomas. We present the first case in the UK of a 7-year-old patient presenting with this condition. Having been previously fit and healthy, the patient presented with an acute onset of cognitive disturbances. The initial suspicion was that of an infective encephalopathy; however, the lumbar puncture results were negative. Electroencephalography reported diffuse background slowing, supporting a diagnosis of encephalopathy...
March 13, 2018: BMJ Case Reports
Yuto Uchida, Daisuke Kato, Yoriko Yamashita, Yasuhiko Ozaki, Noriyuki Matsukawa
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a type of autoimmune encephalitis that can be paraneoplastic and usually responds to tumor resection and immunotherapy. More than 75% of patients with anti-NMDAR encephalitis fully recover or have only mild sequelae, whereas the remainder experience severe disability. It remains unknown why certain cases have refractory clinical disease courses. We report a case of anti-NMDAR encephalitis with bilateral ovarian teratomas who was refractory to tumor resection and early initiation of immunotherapy...
2018: Neuropsychiatric Disease and Treatment
Fengtian Zhang, Xiaolong Yu, Jin Zeng, Min Dai
RATIONALE: Teratomas, which most frequently affect adult females, are the most common type of germ cell tumor, it always comprises derivatives of at least 2 germ layers. The most common site of primary teratomas is the ovary. Sacrococcygeal teratomas (SCTs), which are exceedingly rare in adults, are generally found in newborns or children. PATIENT CONCERNS: A 39-year-old woman presented to our clinic with a 1-year history of gradually aggravated difficulty in micturition and defecation, and a tumor in her right buttock present since birth...
November 2017: Medicine (Baltimore)
Xiaotun Zhang, Andrea Jones, Sarah M Jenkins, Yajue Huang
Primary ovarian carcinoid tumors are rare neoplasms that constitute less than 0.1% of all ovarian carcinomas. However, carcinoid tumors metastatic to ovaries are more common. Cell proliferative rate is an important factor in the determination of neuroendocrine tumor prognosis. Limited data are available as regards Ki67 proliferation index in predicting the physiological features of carcinoid tumors involving the ovary. Pathology files of Mayo Clinic Rochester (1995-2014) were searched, and clinical information was collected from medical records...
January 18, 2018: Endocrine Pathology
Raffaella Fabbri, Rossella Vicenti, Roberto Paradisi, Stefania Rossi, Lucia De Meis, Renato Seracchioli, Maria Macciocca
In this case report, the outcomes of cryopreserved ovarian tissue transplantation performed in a patient affected by struma-ovarii associated with mature cystic teratoma, recurrent endometriotic cysts and diffuse peritoneal malignant struma-ovarii implants were described. Before cryopreservation, the patient underwent two left ovarian surgeries for enucleation cysts 8 years after righ salpingo-oophorectomy for struma-ovarii. Ovarian biopsy was collected in another hospital and transported to our laboratory for cryopreservation...
January 10, 2018: Gynecological Endocrinology
Rui Gil, Teresa Margarida Cunha, Ines Rolim
We describe a case of a mature cystic teratoma of the ovary with high proportion of solid thyroid tissue (< 50% of the entire tumor) in a childbearing woman. The patient presented with non-specific abdominal bloating. Pelvic ultrasound and magnetic resonance imaging revealed a complex cystic-solid tumor confined to the left ovary with an anterior fat-containing locus compatible with mature cystic teratoma and a posterior predominantly solid component with low signal intensity on T2-weighted images that was histopatologically diagnosed as benign thyroid tissue...
July 2017: Journal of Radiology Case Reports
Juliane Comunello, Fábio Fernando Eloi Pinto, Suely Akiko Nakagawa, Wu Tu Chung, Felipe D'Almeida Costa, Américo Delgado Brilhante
CASE: We report the case of a 38-year-old woman who presented with a lytic bone lesion in the left scapula. A biopsy showed a tumor with the histologic appearance of thyroid tissue. She also was found to have a thyroid nodule and an enlarged ovary, both of which were excised. The thyroid nodule turned out to be a benign colloid nodule, and the ovary contained a monodermal teratoma composed of thyroid tissue (struma ovarii). The lesion in the scapula eventually was proven to be metastatic malignant struma ovarii...
October 2017: JBJS Case Connector
Erik Kudela, Marcela Nachajova, Kamil Biringer, Pavol Slavik, Lukas Plank, Jan Danko
INTRODUCTION: Ovarian teratomas undergo the malignant transformation in 0.2-2% of cases. The behavior of malignancies in mature cystic teratomas (MCT) is determined by their phenotype and not their derivation from germ cells. We can recognize pure angiosarcomas or as a part of other tumors like malignant mixed Mullerian tumors and adenosarcomas. PRESENTATION OF CASE: We present the first case of bilateral ovarian angiosarcoma arising from the mature teratomas. Due to widespread disease, we performed limited surgical procedure consisting of bilateral adnexectomy and omentectomy...
2018: International Journal of Surgery Case Reports
Wail Bouzoubaa, Sofia Jayi, Fatima Zohra Fdili Alaoui, Hikmat Chaara, Moulay Abdelilah Melhouf
Ovarian teratomas are tumors resulting from pluripotent germ cells. We here describe 3 different types of teratomas: mature, immature and monodermal teratomas. Immature teratoma accounts for less than 1% of ovarian cancers and mainly affects young subjects. We report the case of a 25 year female patient, admitted with abdomino pelvic mass. She underwent ultrasound and a pelvic CT scan followed by conservative treatment based on left annexectomy associated with multiple biopsies. Anatomopathological examination showed immature ovarian teratoma...
2017: Pan African Medical Journal
Ita Hadžisejdić, Emina Babarović, Luka Vranić, Antica Duletić Načinović, Ksenija Lučin, Maja Krašević, Nives Jonjić
BACKGROUND: Plasmablastic lymphoma (PBL) is relatively new clinical entity described as a distinct subtype of diffuse large B-cell lymphoma (DLBCL). It is characterized by its aggressive nature and proliferation of large neoplastic cells resembling immunoblasts including cells with more obvious plasmacytic differentiation. In this case report, we describe an unexpected finding of PBL associated with a mature cystic teratoma of the ovary in a young immune competent woman. CASE PRESENTATION: A 19-year old woman was admitted to the hospital with generalized lymphadenopathy, a pelvic tumor mass measuring 35 × 30 cm and a 4 cm lump in her right breast...
November 29, 2017: Diagnostic Pathology
Nicolas Brandone, Ilona Okhremchuk, Marie-Christine Rojat-Habib, Anne-Laroque Blanc, Wassim Essamet, Aubert Agostini, Nicolas Macagno
We report the case of a 33-year-old woman who went under surgery for a cystic mature teratoma. The histological exam found two cysts, one was a mature teratoma and the other was a struma ovarii with a papillary carcinomatous element. Struma ovarii cancerization is seen in 5 to 10% of the cases usually under a papillary carcinoma type. Diagnosis is rarely made before surgery, the patients exceptionally show thyroid symptoms. Histologically, the tumour presents the same way as the one seen in the thyroid gland and BRAF mutations have been reported...
December 2017: Annales de Pathologie
Ahmet Atıcı, Engin Yılmaz, Ayşe Karaman, Sema Apaydın, Çağatay Evrim Afşarlar
Atıcı A, Yılmaz E, Karaman A, Apaydın S, Afşarlar ÇE. Tuba-ovarian auto-amputation caused by ovarian teratoma in an adolescent girl. Turk J Pediatr 2017; 59: 90-92. Ovarian auto-amputation is an extremely rare condition commonly encountered in the perinatal period. Spontaneous or secondary torsion of the ovary caused by an ovarian lesion may result in infarction and subsequent auto-amputation of the ovary. This paper demonstrates a case that underwent laparoscopic appendectomy with an incidental calcified auto-amputated right ovary...
2017: Turkish Journal of Pediatrics
F F Nogales, J Prat, M Schuldt, N Cruz-Viruel, B Kau, E D'Angelo, X Matias-Guiu, A Vidal, W G McCluggage, J W Oosterhuis
AIMS: To report a series of 11 ovarian and one endometrial neoplasm in elderly patients with mixed clear cell tumour and germ cell tumour (GCT) components, to compare their immunohistochemical and demonstrate a putative stem cell population. METHODS AND RESULTS: The clear cell tumours included 11 clear cell carcinomas (CCC) and 1 borderline clear cell tumour, while the GCT always included glandular yolk sac tumour (YST). In 4 cases, there were also foci of teratoma with immature neuroepithelial and endodermal tissues, and undifferentiated areas showing true embryoids...
November 6, 2017: Histopathology
Xuejie Shen, Yang Fan, Shui Cao
Primary malignant melanoma arising in an ovarian cystic teratoma is exceedingly rare event with an estimated incidence of 0.2-0.8%. So far, there have been approximately only 47 relevant reports. We report a case of primary malignant melanoma of the ovary arising in a cystic teratoma here. Moreover, we review systematically the disease from the following aspects, that origin, clinical characteristics, accessory examination, pathological features, diagnosis, differential diagnosis, treatment, prognosis.
December 2017: Melanoma Research
Sevgi Koc, Omer Lutfi Tapisiz, Taner Turan, Reyhan Ocalan, Ahmet Ozfuttu, Nurettin Boran, Mehmet Faruk Kose, Hakkı Gokhan Tulunay
The aim of this study was to analyze the patients with malignant transformation (MT) arising in mature cystic teratoma of the ovary (MCTO) and evaluate the clinicopathologic features, managements, and prognosis of these cases. The records of the patients with MT arising in MCTO who were treated at our hospital were reviewed retrospectively. The demographic features, presenting symptoms, preoperative ultrasonographic evaluations, surgical treatments, pathological findings, adjuvant therapies, follow-up outcomes, and survival time were examined...
September 2017: Journal of Experimental Therapeutics & Oncology
Subhashis Mitra, Amiya Jhunjhunwala, Hema Chakraborty
Neuroendocrine tumors (NETs) are neoplasms arising from dispersed neuroendocrine cells, localized to the gastrointestinal tract (GIT), lungs, adrenal medulla, and other sites. The term "carcinoid tumor" is usually limited to NETs of the lung and GIT. Ovarian carcinoids are uncommon, accounting for 0.1% of ovarian malignancies and 5% of all NETs. Primary ovarian tumors arise in pure form or as a component of teratomas, while ovarian NET metastases are predominantly from gastrointestinal primaries. To the best of our knowledge, there are only two previous reports of bronchopulmonary carcinoids (PCs) metastasizing to the ovaries...
July 2017: Indian Journal of Pathology & Microbiology
Fa-Kung Lee, Huann-Cheng Horng, Peng-Hui Wang
No abstract text is available yet for this article.
September 4, 2017: Journal of the Chinese Medical Association: JCMA
Anoop Mohamed Iqbal, W Frederick Schwenk
BACKGROUND: Immature ovarian teratoma is very rare in childhood. We are reporting 12 yo female with immature ovarian teratoma who presented initially with syndrome of inappropriate antidiuretic hormone. CASE: A 12 yo female presented with acute abdomen and distention. Initial laboratory tests showed hyponatremia (sodium -123 mmol/L), that did not respond to fluid management. Computerized tomography showed a 15 cm x 9 cm x 20 cm mass in the right ovary with multifocal internal fat, and dystrophic calcifications...
August 14, 2017: Journal of Pediatric and Adolescent Gynecology
Dongfeng Niu, Zhongwu Li, Li Sun, Dengfeng Cao
Primary ovarian carcinoids are relatively uncommon, either pure (monodermal teratomas) or in association with mature cystic teratomas. Here we reported a unique case of carcinoid arising from the teratomatous bronchial mucosa in an ovarian mature cystic teratoma in a 22-year-old woman. This tumor showed compact trabecular and nested growth pattern with salt-and-pepper chromatin pattern. Mitotic figures were identified (6/10 high power fields) and focal necrosis was present. Immunohistochemically the tumor cells were diffusely positive for TTF1 and CD56, focally positive for synaptophysin, and negative for chromogranin A and CDX2...
August 2, 2017: International Journal of Gynecological Pathology
Tip Pongsuvareeyakul, Kornkanok Sukpan, Somjet Chaicharoen, Surapan Khunamornpong
The occurrence of malignant transformation in mature cystic teratoma of the ovary is rare, with squamous cell carcinoma being the most common histologic type. Sarcomatous transformation has been rarely described in the literature. We present a case of leiomyosarcoma with a minor component of squamous cell carcinoma arising in mature cystic teratoma of ovary in a 65-year-old woman. The malignant tumor showed two distinct components of sarcomatous and invasive epithelial elements, which were confirmed by immunostaining...
2017: Case Reports in Pathology
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