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ovarian teratoma

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https://www.readbyqxmd.com/read/28429716/polyembryoma-of-the-testis-a-report-of-two-cases-dominant-within-mixed-germ-cell-tumors-and-review-of-gonadal-polyembryomas
#1
REVIEW
Jennifer N Stall, Robert H Young
Two testicular mixed germ cell tumors, from men of 21 and 41 years, in which polyembryoma predominated are described. A literature review uncovered an additional five testicular and nine ovarian cases. One tumor occurred in a 60-year-old man, but all others occurred within the typical age range of gonadal germ cell tumors. One male presented with gynecomastia and one female with sexual precocity, but all otherwise had standard clinical manifestations. These tumors are typically large with non-specific gross features, but a few have a prominent hemorrhagic appearance...
April 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28415994/a-pathological-and-clinical-study-of-706-primary-tumours-of-the-ovary-in-the-largest-tertiary-hospital-in-ghana
#2
Patrick Kafui Akakpo, Leonard Derkyi-Kwarteng, Richard Kwasi Gyasi, Solomom Edward Quayson, Simon Naporo, Jehoram Tei Anim
BACKGROUND: Ovarian tumours are a leading cause of death in Ghana. Even though geographical and racial differences exist in the frequency, types and age distribution of primary ovarian tumours, information about the clinical and pathological characteristics of ovarian tumours in Ghana and its neighboring countries is scanty. We determined the frequency, age distribution, histopathological types and clinical features of primary ovarian tumours diagnosed at the Korle-Bu Teaching Hospital in Ghana to aid in the management of patients...
April 17, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28415950/ovarian-cystectomy-in-the-treatment-of-apparent-early-stage-immature-teratoma
#3
Ting Zhao, Yan Liu, Xiao Wang, Hao Zhang, Yuan Lu
Objective To investigate the role of ovarian cystectomy in patients with early-stage immature teratoma. Methods A retrospective review was undertaken on patients diagnosed pathologically with immature teratoma and with malignant lesions confined to the ovary. Patients were included if they had been treated between January 1997 and December 2015 at the Obstetrics and Gynaecology Hospital of Fudan University, Shanghai, China. Relevant demographic and clinical data were retrieved from the medical records. Results Forty-three patients were included in the study; 14 underwent ovarian cystectomy (group 1) and 29 underwent unilateral salpingo-oophorectomy (USO; group 2)...
April 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28396218/analysis-of-clinical-and-ultrasound-determinants-of-adnexal-torsion-in-children-and-adolescents
#4
Rebecca Jourjon, Baptiste Morel, Sabine Irtan, Etienne Audureau, Aurore Coulomb-L'Herminé, Michèle Larroquet, Hubert Ducou le Pointe, Eléonore Blondiaux
STUDY OBJECTIVE: We aimed to assess the performance of transabdominal ultrasonography (US) for diagnosis of adnexal torsion (AT) in girls and adolescents and evaluate its clinical and US determinants. STUDY DESIGN, PARTICIPANTS, INTERVENTIONS AND OUTCOME MEASURES: We retrospectively (2004 to 2014) studied data for girls referred for acute or sub-acute pelvic pain who underwent US and included girls 3 months to 18 years old who underwent surgical exploration and/or clinical and radiological follow-up for at least 3 months...
April 7, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28394114/ovarian-teratoma-in-routine-biopsy-material-during-a-five-year-period
#5
Marina Kos, Jasmina Nikić, Tanja Leniček
Teratomas are tumors derived from germ cells, most frequently arising in the gonads. The aim of this study was to determine the number of ovarian teratomas diagnosed in the routine biopsy material at Ljudevit Jurak Clinical Department of Pathology, Sestre milosrdnice University Hospital Center during a 5-year period, as well as their clinical, gross and microscopic characteristics. Teratomas accounted for 48.6% (n=166) of primary ovarian tumors. The patient mean age was 34.74±12.37 years. Difference in the incidence of teratoma between the left and right ovary was not significant; bilateral teratoma was found in 13 patients...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28393096/18f-fdg-positron-emission-tomography-findings-of-gliomatosis-peritonei-a-case-report-and-review-of-the-literature
#6
J-M Lavoie, F Lacroix-Poisson, L N Hoang, D C Wilson, M J Seckl, A V Tinker
•Gliomatosis peritonei (GP) is a rare benign complication of ovarian teratomas that does not impact overall survival.•GP exhibits high 18-F FDG uptake unlike other non-malignant forms of mature teratoma.•The specific characteristics of GP on functional imaging may be used to follow it with active surveillance in select cases.
May 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/28363052/teratoma-of-the-ovary-in-a-free-ranging-japanese-raccoon-dog-nyctereutes-procyonoides-viverrinus
#7
Hisashi Yoshimura, Masami Yamamoto, Maiko Moriya, Tomohiko Endo, Natsuko Sugiura, Takuya Kato, Yoko Matsuda, Toshiyuki Ishiwata, Hiroshi Kajigaya, Shinji Kamiya
A young adult, female, free-ranging Japanese raccoon dog ( Nyctereutes procyonoides viverrinus) with scabies infection was found dead as a result of traumatic injuries presumed to reflect vehicular trauma. Necropsy showed a large solid mass located on the left ovarian region, occupying a third of the abdominal cavity. Histologically, the mass contained complex tissues derived from three germinal layers, with areas of cuboidal or columnar epithelium, keratinized squamous epithelium, bone, cartilage, and adipose tissue...
March 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28357110/identical-twins-with-mature-cystic-teratomas-treated-with-laparoscopic-surgery-two-case-reports
#8
Yasushi Mabuchi, Nami Ota, Aya Kobayashi, Yuko Tanizaki, Sawako Minami, Kazuhiko Ino
Mature cystic teratomas are the most common among all ovarian neoplasms, representing 30-40% of the cases. However, to the best of our knowledge, there have been only two reports of mature cystic teratomas occurring in identical twins to date. We herein report a case of identical twins with mature cystic teratomas who were treated with laparoscopic surgery. A 32-year-old woman was referred to our hospital due to a tumor in the right ovary. The patient underwent laparoscopic resection of the ovarian tumor and the pathological diagnosis was benign mature cystic teratoma...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28348779/unusual-case-of-pelvic-hydatid-cyst-of-broad-ligament-mimicking-an-ovarian-tumour
#9
Alaa Abdullah, Reema Alsafi, Jamshaid Iqbal, Vincent Rotimi
INTRODUCTION: The diagnosis of hydatid cyst in female genital tract is rare and difficult. A high degree of clinical suspicion is needed for pre-operative investigations to exclude hydatid cyst of female pelvis. The objective of this presentation is to highlight a pelvic hydatid cyst that presented as an ovarian tumour. CASE PRESENTATION: A 22-year-old female, presented with constipation and haematuria with acute urinary retention. On examination, a mass measuring 15×13 cm was palpable in the left iliac region reaching up to the umbilicus...
August 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28319573/vascular-smooth-muscle-cell-maturation-stage-and-ki-67-index-are-diagnostic-biomarkers-for-pathologic-grade-of-ovarian-teratoma
#10
Masako Hongo-Kohama, Atsushi Kurata, Hirotsugu Hashimoto, Koji Fujita, Hajime Horiuchi, Toshitaka Nagao, Masahiko Kuroda
Although immature teratoma of the ovary is a rare disease, its pathologic grading, especially between low-grade (grade 1) and high-grade (grade 2 or 3) immature teratomas, is important for optimal therapy and prognosis. This grading, however, is currently solely dependent on quantitation of neuroepithelial components as judged by subjective assessments. As we have recently successfully studied the maturation of vascular smooth muscle cells (SMCs) in other organs using an h-caldesmon to α-smooth muscle actin (α-SMA) ratio, we decided to use this ratio to investigate a potential link between teratoma grade and SMC maturation, in combination with Ki-67 index...
March 17, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28316299/10-year-analysis-of-benign-ovarian-teratomas-outcomes-and-follow-up
#11
Brian P Blackwood, Catherine J Hunter, Marybeth Browne
No abstract text is available yet for this article.
March 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28296680/primitive-neuroectodermal-tumors-of-the-female-genital-tract-a-morphologic-immunohistochemical-and-molecular-study-of-19-cases
#12
Sarah Chiang, Matija Snuderl, Sakiko Kojiro-Sanada, Ariadna Quer Pi-Sunyer, Dean Daya, Tohru Hayashi, Luisanna Bosincu, Fumihiro Ogawa, Andrew E Rosenberg, Lars-Christian Horn, Lu Wang, A John Iafrate, Esther Oliva
Primary primitive neuroectodermal tumor (PNET) of the female genital tract is rare, and its proper classification remains unclear. The clinical, histologic, and immunophenotypic features as well as EWSR1 rearrangement status of 19 gynecologic PNETs, including 10 ovarian, 8 uterine, and 1 vulvar tumors, are herein reported. Patient age ranged from 12 to 68 years, with a median age of 20 and 51 years among those with ovarian and uterine PNETs, respectively. Morphologic features of central nervous system (CNS) tumors were seen in 15 PNETs, including 9 medulloblastomas, 3 ependymomas, 2 medulloepitheliomas, and 1 glioblastoma, consistent with central PNET...
March 14, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28293443/ovarian-mature-and-immature-teratomas-in-monozygotic-twins-a-case-report-of-simultaneous-presentation
#13
Daisuke Shigemi, Naoki Kawai, Toshiyuki Takeshita
Mature cystic teratoma is one of the most common kinds of ovarian tumor, and immature teratoma is a rare tumor, representing less than 1% of all ovarian teratomas. Although there are some reports about familial occurrences of ovarian tumors, literature concerning the clinical cases of monozygotic twins is rare. We report the 5-year clinical courses of a 12-year-old Japanese girl with a recurrent bilateral ovarian mature teratoma and her monozygotic twin with a unilateral ovarian mature teratoma and contralateral ovarian immature teratoma...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28288660/evidence-of-metachronous-development-of-ovarian-teratomas-a-case-report-of-bilateral-mature-cystic-teratomas-of-the-ovaries-and-systematic-literature-review
#14
REVIEW
Wen-Chung Wang, Yen-Chein Lai
BACKGROUND: Mature cystic teratomas are usually found in the ovaries. They are bilateral in 10 to 15% of cases and multiple cystic teratomas may be present in one ovary. The aim of this study is to clarify if development of mature cystic teratomas of the ovaries in a single host is metachronous or due to autoimplant or recurrence. CASE PRESENTATION: We report a woman with bilateral mature cystic teratomas of the ovaries. DNA profiles of these teratomas were investigated via short tandem repeat (STR) analysis and methylation statuses were determined via methylation sensitive multiplex ligation-dependent probe amplification methods...
March 14, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28273351/use-of-cancer-antigen-125-cancer-antigen-19-9-and-the-neutrophil-to-lymphocyte-ratio-to-diagnose-mature-cystic-teratoma-with-torsion
#15
Yuan-Qiu Wang, Wei-Ting Xia, Fang Wang, Xin-Xin Zhuang, Fei-Yun Zheng, Feng Lin
OBJECTIVE: To determine the efficacy of serum levels of cancer antigen 125 (CA125) and cancer antigen 19-9 (CA19-9), and the neutrophil-to-lymphocyte ratio (NLR) for diagnosis of mature cystic teratoma (MCT) with torsion. METHODS: A retrospective medical record review was conducted of data for women who had undergone surgery for ovarian MCT at the First Affiliated Hospital of Wenzhou Medical University, China, between January 1, 2008, and January 1, 2015. Patients with torsion and a control group who underwent surgery on the same days were identified...
March 8, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28259863/-review-of-the-psychiatric-aspects-of-anti-nmda-n-methyl-d-aspartic-acid-receptor-encephalitis-case-report-and-our-plans-for-a-future-study
#16
Levente Herman, Ildiko Reka Zsigmond, Laszlo Peter, Janos M Rethelyi
Anti-NMDAR (N-methyl-D-aspartic acid receptor) encephalitis, first described in 2007, is a rare, autoimmune limbic encephalitis. In half of the cases anti-NMDAR antibodies are paraneoplastic manifestations of an underlying tumor (mostly ovarian teratoma). In the early stage of the disease psychiatric symptoms are prominent, therefore 60-70% of the patients are first treated in a psychiatric department. In most of the cases, typical neurological symptoms appear later. Besides the clinical picture and typical symptoms, verifying presence of IgG antibodies in the serum or CSF is necessary to set up the diagnosis...
December 2016: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/28214217/malignant-tumors-associated-with-ovarian-mature-teratoma-a-single-institution-experience
#17
Levent Trabzonlu, Guray Durmaz, Cigdem Vural, Bahar Muezzinoglu, Aydin Corakci
OBJECTIVE: The aims of this study are to present demographical features of cases diagnosed with malignant tumor associated with ovarian mature teratoma and to analyze histopathological features and clinical follow up of these tumors. STUDY DESIGN: Single-institution retrospective charts were reviewed to identify all cases of ovarian mature teratoma diagnosed from 1998 to 2015. Clinicopathological parameters that were analyzed include age, tumor size, tumor stage, histological type, laterality, IOC diagnosis and whether or not patient has received adjuvant chemotherapy...
January 22, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28208869/mature-cystic-teratoma-with-co-existent-mucinous-cystadenocarcinoma-in-the-same-ovary-a-diagnostic-dilemma
#18
Sanjeet Roy, Sramana Mukhopadhayay, Mayank Gupta, Anuradha Chandramohan
Mature cystic teratoma co-existing with a mucinous cystadenocarcinoma is an infrequently encountered entity with only a handful of cases reported till date. The possibilities in such a case are either a malignant transformation of a benign teratoma into adenocarcinoma or a collision tumor between a mature cystic teratoma and a mucinous tumour of either a primary ovarian surface epithelial-stromal origin or a secondary from a primary gastrointestinal tract tumour. The importance of distinguishing between the two entities has significant bearing on subsequent therapeutic management...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28190856/virilism-and-ectopic-expression-of-hsd17b5-in-mature-cystic-teratoma
#19
Yohei Kawaguchi, Hiroko Mizuno, Mai Horikawa, Mayuko Kano, Kengo Yamada, Fumiko Yamakawa, Takashi Maekawa, Yuto Yamazaki, Keely M McNamara, Hironobu Sasano, Masayuki Hayashi
Mature cystic teratoma (MCT) is rarely involved in the overproduction of steroid hormones in contrast to sex cord stromal tumors. A 31-year-old woman visited our hospital with hirsutism, hoarseness, and hair loss from the scalp. Serum testosterone and free-testosterone levels were 7.3 ng/ml and 2.3 pg/ml, respectively, which were markedly in excess of the age adjusted female standard levels. Basal blood levels of steroid hormones and serum levels of 17-hydroxyprogesterone at 1 h after intravenous injection of adrenocorticotropic hormone demonstrated that 21-hydroxylase deficiency was not the underlying cause of her virilization...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28166073/ovarian-tumors-pattern-of-histomorphological-types-a-10-years-study-in-a-tertiary-referral-center-and-review-of-literature
#20
A Ghosh, D Ghartimagar, S Thapa, B Sathian, R Narasimhan, O P Talwar
Background Ovarian cancer accounts for 6% of all cancers in females. Among cancers of female genital tract, the incidence of ovarian cancers ranks below only carcinoma of the cervix and the endometrium. Objective To find the frequency of different types of histomorphological types and their association with age, side and size distribution. Method This study is a hospital based retrospective study carried out in the Department of Pathology, Manipal Teaching Hospital over a time period from Jan. 2006 to Sep. 2015...
April 2016: Kathmandu University Medical Journal (KUMJ)
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