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https://www.readbyqxmd.com/read/28931330/sequential-molecular-changes-and-dynamic-oxidative-stress-in-high-grade-serous-ovarian-carcinogenesis
#1
Hiroshi Kobayashi, Kenji Ogawa, Naoki Kawahara, Kana Iwai, Emiko Niiro, Sachiko Morioka, Yuki Yamada
The mechanism of high-grade serous ovarian cancer (HGSC) development remains elusive. This review outlines recent advances in the understanding of sequential molecular changes associated with the development of HGSC, as well as describes oxidative stress-induced genomic instability and carcinogenesis. This article reviews the English-language literature between 2005 and 2017. Clinicopathological features analysis provide a sequential progression of fallopian tubal epithelium to precursor lesions to type 2 HGSC...
September 21, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28925754/plasma-urocortin-1-as-a-preoperative-marker-of-endometriosis-in-symptomatic-women
#2
Laura M Maia, Ana L Rocha, Helen L Del Puerto, Felice Petraglia, Fernando M Reis
Accurate noninvasive diagnostic tests for endometriosis are still missing. This study evaluated the predictive value of the neuropeptide urocortin 1 (Ucn1) to detect pelvic endometriosis in symptomatic women. We enrolled prospectively 97 consecutive women submitted to gynecologic laparoscopy for chronic or acute pelvic pain, infertility or adnexal mass. Preoperative blood samples were assayed for Ucn1 using enzyme immunoassay. Patients with endometriosis had higher plasma Ucn1 levels compared to patients with no lesions (median 59 vs...
September 19, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28906309/cancer-stem-cell-related-marker-nanog-expression-in-ovarian-serous-tumors-a-clinicopathological-study-of-159-cases
#3
Nataša Kenda Šuster, Snježana Frković Grazio, Irma Virant-Klun, Ivan Verdenik, Špela Smrkolj
OBJECTIVE: The objectives of this study were to assess cancer stem cell-related marker NANOG expression in ovarian serous tumors and to evaluate its prognostic significance in relation to ovarian serous carcinoma. METHODS: NANOG protein expression was immunohistochemically evaluated in the ovarian tissue microarrays of 20 patients with benign ovarian serous tumors, 30 patients with borderline ovarian serous tumors, and 109 patients with ovarian serous carcinomas, from which 106 were of high-grade and 3 of low-grade morphology Immunohistochemical reaction was scored according to signal intensity and the percentage of positive cells in tumor samples...
September 13, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28904809/magnetic-resonance-imaging-performance-for-diagnosis-of-ovarian-torsion-in-pregnant-women-with-stimulated-ovaries
#4
Elizabeth Asch, Jesse Wei, Koenraad J Mortele, Kathryn Humm, Kim Thornton, Deborah Levine
BACKGROUND: To determine if asymmetric ovarian edema on non-contrast MRI can be used to distinguish torsed from non-torsed stimulated ovaries in pregnant women. METHODS: In this retrospective study, our radiology database was searched for women who were pregnant and who had undergone ovarian stimulation and underwent MRI abdomen/pelvis from 1/2000-12/2012. At our institution, ultrasound is typically performed as a first line study for pregnant women with pelvic pain, with MR for those patients with indeterminate findings...
2017: Fertility Research and Practice
https://www.readbyqxmd.com/read/28903471/the-role-of-tgf-%C3%AE-in-the-pathophysiology-of-peritoneal-endometriosis
#5
Vicky J Young, S F Ahmad, W Colin Duncan, Andrew W Horne
BACKGROUND: Endometriosis is estimated to affect 6-10% of women of reproductive age and it is associated with chronic pelvic pain, dysmenorrhoea and subfertility. It is currently managed surgically or medically but symptoms recur in up to 75% of cases and available medical treatments have undesirable side effects. Endometriosis is defined as the presence of endometrial tissue outside the uterus with lesions typically found on the peritoneum. The aetiology of endometriosis is uncertain but there is increasing evidence that transforming growth factor (TGF)-β plays a major role...
September 1, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28900992/-clinicopathologic-characteristics-and-prognosis-of-rectal-neuroendocrine-neoplasms
#6
Tao Liu, Ping Liu, Tao Wu, Yisheng Pan, Guowei Chen, Pengyuan Wang, Yong Jiang, Yingchao Wu, Xin Wang
OBJECTIVE: To study the clinicopathologic characteristics and prognosis of rectal neuroendocrine neoplasms (NENs). METHODS: From January 2000 to May 2017, 84 patients were diagnosed as NENs by pathology and underwent surgical treatment in Peking University First Hospital. Their clinicopathological characteristics, surgial options and prognosis were analyzed retrospectively. RESULT: Among these 84 cases, 67 cases were NET G1, 6 cases were NET G2, 10 cases were NEC G3 and 1 case was MANEC G3...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900696/a-systematic-approach-to-adnexal-masses-discovered-on-ultrasound-the-adnex-mr-scoring-system
#7
REVIEW
Elizabeth A Sadowski, Jessica B Robbins, Andrea G Rockall, Isabelle Thomassin-Naggara
Adnexal lesions are a common occurrence in radiology practice and imaging plays a crucial role in triaging women appropriately. Current trends toward early detection and characterization have increased the need for accurate imaging assessment of adnexal lesions prior to treatment. Ultrasound is the first-line imaging modality for assessing adnexal lesions; however, approximately 20% of lesions are incompletely characterized after ultrasound evaluation. Secondary assessment with MR imaging using the ADNEx MR Scoring System has been demonstrated as highly accurate in the characterization of adnexal lesions and in excluding ovarian cancer...
September 12, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28893324/selecting-treatment-method-for-ovarian-masses-in-children-24%C3%A2-years-of-experience
#8
Justyna Łuczak, Maciej Bagłaj
BACKGROUND: Epidemiology and pathology of ovarian tumors in the pediatric population are very different of these encountered in women. Few attempts have been made to analyze the whole spectrum of ovarian pathology in children, and only some of them included series of more than 200 cases. We performed a retrospective analysis of clinical and diagnostic aspects of ovarian tumors and tumor-like lesions in girls in order to identify the characteristics associated with malignancy with an attempt to elaborate a clinical management algorithm...
September 11, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28892996/pelvic-mass-lesions-in-females-tissue-characterization-capability-of-mri
#9
Pramod Ramchand Shaha, Rahul Khetawat, Kulamani Sahoo, Ashish Garg, Mohd Abbas Ilyas, Gaurav Khairnar, Sahil Garg, Shree Hari Budgemwar
INTRODUCTION: Magnetic Resonance Imaging (MRI) of adult female pelvis is a well-established tool in the evaluation of utero-ovarian lesions and is often used to supplement ultrasonography. The need for diagnostic surgical intervention has largely been eclipsed with the advent of MRI, which has become the imaging modality of choice for characterization of pelvic masses. AIM: To assess the role of MRI in female pelvic mass lesions and to exploit the tissue characterization capability of MRI...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28882972/ileocecal-obstruction-due-to-endometriosis-a-case-report-and-literature-review
#10
Nicolae Bacalbasa, Irina Balescu, Alexandru Filipescu
Endometriosis is a common finding in premenopausal women and a significant number of cases presenting digestive tract involvement at the time of diagnosis. However, most of these patients present pelvic nodules involving the rectosigmoidian junction, other digestive tract segments being less commonly affected. We present the case of a 37-year-old nulliparous woman who presented for diffuse abdominal pain and vomiting; she was diagnosed with complete ileocecal obstruction due to an endometriosis nodule in association with bilateral ovarian endometriosis lesions invading the rectosigmodian wall...
September 2017: In Vivo
https://www.readbyqxmd.com/read/28877654/nucks-nuclear-elevated-expression-indicates-progression-and-prognosis-of-ovarian-cancer
#11
Ce Shi, Ling Qin, Hongyu Gao, Lina Gu, Chang Yang, Hebing Liu, Tianbo Liu
NUCKS (nuclear, casein kinase, and cyclin-dependent kinase substrate) is implicated in the tumorigenesis of several human malignancies, but its role in ovarian cancer remains unknown. We aim to investigate NUCKS expression and its clinical significance in ovarian cancer. The messenger RNA expression of NUCKS was determined in normal and malignant ovarian tissues using quantitative polymerase chain reaction assay. Immunohistochemistry was applied to detect the status of NUCKS protein expression in 121 ovarian cancer tissues...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28877056/pax8-expression-in-a-subset-of-malignant-peritoneal-mesotheliomas-and-benign-mesothelium-has-diagnostic-implications-in-the-differential-diagnosis-of-ovarian-serous-carcinoma
#12
David B Chapel, Aliya N Husain, Thomas Krausz, Stephanie M McGregor
Distinguishing malignant peritoneal mesothelioma (MPM) from serous carcinoma involving the peritoneum remains a diagnostic challenge, particularly in small biopsy and cytology specimens. In this distinction, PAX8 expression has been regarded as a specific marker of serous carcinoma. In addition, BAP1 loss is reportedly specific to MPM, in the distinction from both benign mesothelial lesions and ovarian serous tumors (OSTs). Using immunohistochemistry, we examined PAX8 and BAP1 expression in 27 MPMs, 25 cases of benign mesothelium, and 45 OSTs...
September 4, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28873354/mutation-of-nras-is-a-rare-genetic-event-in-ovarian-low-grade-serous-carcinoma
#13
Deyin Xing, Yohan Suryo Rahmanto, Felix Zeppernick, Charlotte G Hannibal, Susanne K Kjaer, Russell Vang, Ie-Ming Shih, Tian-Li Wang
Activating mutations involving the members of the RAS signaling pathway, including KRAS, NRAS, and BRAF, have been reported in ovarian low-grade serous carcinoma and its precursor lesion, serous borderline tumor (SBT). Whether additional genetic alterations in the RAS oncogene family accumulate during the progression of serous borderline tumor (SBT) to invasive low grade serous carcinoma (LGSC) remains largely unknown. While mutations of KRAS and BRAF occur at a very early stage of progression, even preceding the development of SBT, additional driving events, such as NRAS mutations, have been postulated to facilitate progression...
September 2, 2017: Human Pathology
https://www.readbyqxmd.com/read/28869177/correlation-of-18-f-fdg-uptake-on-pet-ct-with-ki67-immunohistochemistry-in-pre-treatment-epithelial-ovarian-cancer
#14
M Mayoral, P Paredes, A Saco, P Fusté, P Perlaza, A Tapias, A Fernandez-Martinez, L Vidal, J Ordi, J Pavia, S Martinez-Roman, F Lomeña
OBJECTIVE: Standardized uptake value (SUV) and volumetric parameters such as metabolic tumour volume (MTV) and total lesion glycolysis (TLG) from (18)F-FDG PET/CT are useful criteria for disease prognosis in pre-operative and post-treatment epithelial ovarian cancer (EOC). Ki67 is another prognostic biomarker in EOC, associated with tumour aggressiveness. The aim of this study is to evaluate the association between (18)F-FDG PET/CT measurements and Ki67 in pre-treatment EOC to determine if PET/CT parameters could non-invasively predict tumour aggressiveness...
August 28, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28864051/-bowel-endometriosis-and-infertility-do-we-need-to-operate
#15
M Bourdon, P Santulli, L Marcellin, M C Lamau, C Maignien, C Chapron
Endometriosis is a benign chronic inflammatory disease, whose pathogenesis is still unclear. Endometriosis is responsible for infertility and/or pelvic pain. One of the most important features of the disease is the heterogeneity (clinical and anatomical: superficial peritoneal, ovarian and/or deep infiltrating lesions). Bowel involvement constitutes one particularly severe form of the disease, affecting 8-12% of women with deep endometriosis. In case of associated infertility, bowel endometriosis constitutes a real therapeutic challenge for gynecologists...
August 29, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28862203/utility-of-cell-block-to-detect-malignancy-in-fluid-cytology-adjunct-or-necessity
#16
Sumedha Dey, Dipanwita Nag, Ayandip Nandi, Ranjana Bandyopadhyay
AIM OF THE STUDY: Cell block (CB) technique when supplemented with conventional smear, provides increased cellularity, preservation of architectural pattern with excellent morphology, and a clear background. We compare the utility of CB technique compared to conventional smear in detection of malignancy in serous effusions. MATERIALS AND METHODS: An institution-based observational and analytical study was carried out over 1 year on 50 patients with effusions. The residual amount of centrifuged deposit after preparation of conventional smear was mixed with 10% alcohol-formalin solution, and CBs were prepared...
July 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28845023/unilateral-luteoma-of-the-ovary-in-a-pregnant-risso-s-dolphin-grampus-griseus
#17
Hironobu Nishina, Takeshi Izawa, Miki Ozaki, Mitsuru Kuwamura, Jyoji Yamate
A white, lobular mass was found in the right ovary of a pregnant Risso's dolphin (Grampus griseus) at necropsy. The mass was unilateral and occupied most of the pre-existing ovarian tissue. Histologically, the mass was composed of diffuse sheets of polyhedral cells with abundant eosinophilic cytoplasm and oval nuclei, separated by fibrous connective tissue. Only a few ovarian follicles were observed at the periphery of the mass. Immunohistochemically, the large eosinophilic cells were positive for vimentin and negative for pan-cytokeratins...
August 27, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28843267/screening-for-circulating-tumour-cells-allows-early-detection-of-cancer-and-monitoring-of-treatment-effectiveness-an-observational-study
#18
Karin Ried, Peter Eng, Avni Sali
Background: Circulating-Tumour-Cells (CTC) provide a blood biomarker for early carcinogenesis, cancer progression and treatment effectiveness. An increase in CTCs is associated with cancer progression, a CTC decrease with cancer containment or remission. Several technologies have been developed to identify CTC, including the validated Isolation-by-Size-of-Epithelial-Tumour (ISET, Rarecells) technology, combining blood filtration and microscopy using standard histo-pathological criteria. Methods: This observational study compared CTC count to cancer status and cancer risk, by monitoring treatment effectiveness in cancer patients and by screening for CTC in asymptomatic patients with risk factors, including family history of cancer...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28843221/role-of-multidetector-computed-tomography-in-evaluation-of-ovarian-lesions-in-women-clinically-suspected-of-malignancy
#19
Shazia Mukhtar, Sohail Ahmed Khan, Munawar Hussain, Syed Omair Adil
Objective: To determine the diagnostic accuracy of multidetector computed tomography (MDCT) in the evaluation of ovarian carcinoma using histopathology as the gold standard. Methods: This prospective cross-sectional study was conducted at Department of Radiology, Dow international medical college, DUHS, Karachi from December 2015 to April 2016. All patients of 30-60 years of age who were referred for CT a scan of the abdomen and pelvis with clinical suspicion of malignant ovarian cancer were included. A total of 158 cases were assessed with signs and symptoms of weight loss and an abdominal or pelvic mass detected on examination by a physician...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28842113/diffusion-weighted-imaging-in-gynaecological-malignancy
#20
REVIEW
H Addley, P Moyle, S Freeman
Diffusion weighted imaging (DWI) has become an essential part of the gynaecological magnetic resonance imaging (MRI) protocol. DWI is used as an adjunct to conventional MRI sequences and has been shown to improve reporting accuracy in the imaging of gynaecological malignancy. In this review, we discuss the role of DWI in the diagnosis, staging, and assessment of treatment response of endometrial, cervical, and ovarian cancer. We also review the role of DWI in the assessment of the sonographically indeterminate ovarian lesion...
August 22, 2017: Clinical Radiology
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