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Carcinoma ovary

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https://www.readbyqxmd.com/read/29344971/clear-cell-carcinomas-of-the-ovary-and-kidney-clarity-through-genomics
#1
REVIEW
Jennifer X Ji, Yi Kan Wang, Dawn R Cochrane, David G Huntsman
Clear cell ovarian carcinoma (CCOC) and clear cell renal cell carcinoma (ccRCC) both feature clear cytoplasm due to the accumulation of cytoplasmic glycogen. Genomic studies have demonstrated several mutational similarities between these two diseases including frequent alterations in the chromatin remodeling SWI/SNF and cellular proliferation PI3K/mTOR pathways, as well as a shared hypoxia-like mRNA expression signature. Although many targeted treatment options have been approved for advance stage ccRCC, CCOC patients are still treated with conventional platinum and taxane chemotherapy, to which they are resistant...
January 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29342266/causes-patterns-and-severity-of-androgen-excess-in-1205-consecutively-recruited-women
#2
Yasir S Elhassan, Jan Idkowiak, Karen Smith, Miriam Asia, Helena Gleeson, Rachel Webster, Wiebke Arlt, Michael W O'Reilly
Context: Androgen excess in women is predominantly due to underlying polycystic ovary syndrome (PCOS). However there is a lack of clarity regarding patterns and severity of androgen excess that should be considered predictive of non-PCOS pathology. Objective: We examined the diagnostic utility of simultaneous measurement of serum dehydroepiandrosterone sulfate (DHEAS), androstenedione (A4) and testosterone (T) to delineate biochemical signatures and cut-offs predictive of non-PCOS disorders in women with androgen excess...
January 12, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29333014/is-colorectal-cancer-in-young-40-years-different-from-those-in-the-elderly-40-years-experience-from-a-regional-care-center
#3
Rudresha A Haleshappa, Suparna Ajit Rao, Sunny Garg, C Lakshmaiah Kuntegowdanahalli, Govinda Babu Kanakasetty, Lokanatha Dasappa
Background: Colorectal cancer (CRC) is considered a disease of elderly. There has been a steady decrease in the incidence in those aged >50 years, with an alarming increase noted in adults aged <50 years. Subjects and Methods: We retrospectively analyzed 89 patients diagnosed with CRC aged <40 years between the years 2010 and 2014. Their clinical profile, treatment, and outcomes were studied. Results: The median age was 33 years with a male preponderance (56...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29332600/finding-novel-anti-carcinomas-compounds-by-targeting-sfrp4-through-molecular-modeling-docking-and-dynamic-simulation-studies
#4
M Hassan, M Azhar, Q Abbas, H Reza, A A Moustafa, S Shahzadi, Z Ashraf, S Y Seo
BACKGROUND: Secreted frizzled-related protein 4 (SFRP4) is a glycoprotein that act as a competitor of both canonical and non-canonical Wnt pathways. SFRP4 is mostly expressed in ovary and played a significant role as a target molecule to cure ovarian carcinoma. OBJECTIVE: Multiple chemical agonists are being used to cure ovary melanoma. We are interested to theoretically analyze the compounds through computational approaches for their inhibitory effects against SFRP4...
January 11, 2018: Current Computer-aided Drug Design
https://www.readbyqxmd.com/read/29317075/the-origin-of-endometriosis-associated-ovarian-cancer-from-uterine-neoplastic-lesions
#5
Elisabetta Garavaglia, Cristina Sigismondi, Stefano Ferrari, Massimo Candiani
Endometriosis is a risk factor for type I epithelial ovarian cancer but an issue to be clarified is the site of origin of endometriosis associated ovarian cancer. Here we proposed that the uterus may be the organ of origin of ovarian endometrioid cancer associated with endometriosis. Thus, the first neoplastic transformation would characterize the uterine cells migrating in the pelvis via retrograde menstruation and they would implant secondarily on the ovary. Supporting this hypothesis, an higher incidence of synchronous precancerous and cancerous endometrial pathology in patients affected by ovarian endometrioid cancer associated with endometriosis was showed...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29309296/high-grade-endometrioid-carcinoma-of-the-ovary-a-clinicopathologic-study-of-30-cases
#6
Hisham Assem, Peter F Rambau, Sandra Lee, Travis Ogilvie, Anna Sienko, Linda E Kelemen, Martin Köbel
Although infrequently encountered, the diagnosis of ovarian high-grade endometrioid carcinoma remains a diagnostic challenge with potential consequences for targeted therapies and genetic counselling. We studied the clinical, morphologic, and immunohistochemical features of ovarian high-grade endometrioid carcinomas and their diagnostic reproducibility compared with tuboovarian high-grade serous carcinomas. Thirty cases confirmed as International Federation of Gynecology and Obstetrics grade 3 endometrioid carcinomas were identified from 182 ovarian endometrioid carcinomas diagnosed in Alberta, Canada, between 1978 and 2010, from the population-based Alberta Ovarian Tumor Types cohort...
January 5, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29299705/a-comparison-of-the-prognosis-between-adenocarcinoma-and-squamous-cell-carcinoma-in-stage-ib-iia-cervical-cancer
#7
Xiuzhen Xie, Kun Song, Baoxia Cui, Jie Jiang, Xingsheng Yang, Beihua Kong
OBJECTIVE: To explore differences in prognosis between adenocarcinoma (AC) and squamous cell carcinoma (SCC) and to explore feasibility of ovarian preservation in stage IB-IIA cervical cancer (CC). MATERIALS AND METHODS: Medical records of 810 patients (682 SCC + 128 AC) with stage IB-IIA CC were reviewed. Clinical and pathological characters of the two groups were compared using the chi-squared test. Kaplan-Meier survival analysis was used in univariate analysis of prognostic factors...
January 3, 2018: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29290327/-the-value-of-immunohistochemistry-using-smarca4-brg1-in-the-diagnosis-of-small-cell-ovarian-carcinoma-hypercalcemic-type-a-report-of-two-cases
#8
Gema Ruiz-García, M Amparo Torroba-Carón, Belén Ferri-Ñíguez, Miriam Lencina-Guardiola, Francisco García-Molina, Enrique Martínez-Barba
Small cell carcinoma of ovary-hypercalcemic type is an undifferentiated carcinoma. We describe two cases in women aged 32 and 29. Both presented with large masses and complete surgical extirpation was impossible. Histologically, the images were similar, with diffuse cell proliferation, accompanied by the presence of follicle-like spaces. In both cases it was necessary to make a differential diagnosis with entities such as adult or juvenile granulosa cell tumour, small cell carcinoma of pulmonary type, dysgerminoma and even peripheral neuroectodermal tumour...
January 2018: Revista Española de Patología
https://www.readbyqxmd.com/read/29286555/gonadal-dysgenesis-is-associated-with-worse-outcomes-in-patients-with-ovarian-nondysgerminomatous-tumors-a-report-of-the-children-s-oncology-group-agct-0132-study
#9
Bryan J Dicken, Deborah F Billmire, Mark Krailo, Caihong Xia, Furqan Shaikh, John W Cullen, Thomas A Olson, Farzana Pashankar, Marcio H Malogolowkin, James F Amatruda, Frederick J Rescorla, Rachel A Egler, Jonathan H Ross, Carlos Rodriguez-Galindo, A Lindsay Frazier
PURPOSE: In this report, we characterize the timing and behavior of malignant ovarian germ cell tumors (GCTs) in pediatric patients with dysgenetic gonads compared to those with normal gonadal development. PATIENTS AND METHODS: Patients from the Children's Oncology Group AGCT0132 with malignant ovarian GCTs were included. Within this population, we sought to identify patients with gonadoblastoma, streak ovaries, or other evidence of gonadal dysgenesis (GD). Patients with malignant GCTs containing one or more of the following histologies-yolk sac tumor, embryonal carcinoma, or choriocarcinoma-were included...
December 29, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29273082/low-frequency-of-braf-and-kras-mutations-in-chinese-patients-with-low-grade-serous-carcinoma-of-the-ovary
#10
Yan Xu, Rui Bi, Yaoxing Xiao, Xiaoyu Tu, Ming Li, Anqi Li, Ling Shan, Shuling Zhou, Wentao Yang
BACKGROUND: Mounting evidence has shown that KRAS and BRAF are somatic mutations associated with low grade serous carcinoma (LGSC) of the ovary. However, the frequency of KRAS or BRAF mutation was variable in literatures, with a frequency of 16-54% for KRAS mutation and 2-33% for BRAF mutation. Meanwhile, the prognostic significance of KRAS or BRAF mutation remains controversial. METHODS: Codons 12 and 13 of exon 2 of KRAS gene and exon 15 of BRAF gene were analyzed using direct Sanger sequencing in 32 cases of LGSC of the ovary...
December 22, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/29241974/endometriosis-associated-ovarian-neoplasia
#11
REVIEW
Xavier Matias-Guiu, Colin J R Stewart
This article reviews the most relevant pathological and molecular features of ovarian tumours that are associated with endometriosis. Endometriosis is a common condition, affecting 5-15% of all women, and it has been estimated that 0.5-1% of cases are complicated by neoplasia. The most common malignant tumours in this setting are endometrioid adenocarcinoma and clear cell adenocarcinoma, each accounting for approximately 10% of ovarian carcinomas in Western countries. A minority of cases are associated with Lynch syndrome...
December 11, 2017: Pathology
https://www.readbyqxmd.com/read/29233547/the-developing-spectrum-of-gastric-type-cervical-glandular-lesions
#12
REVIEW
Karen L Talia, W Glenn McCluggage
Adenocarcinoma of the cervix is less common than squamous cell carcinoma, although its relative prevalence is increasing. Oncogenic (high-risk) human papillomavirus (HPV) infection is implicated in the development of approximately 90% of all cervical adenocarcinomas. Of the remaining non-HPV associated tumours, the most frequent is gastric-type adenocarcinoma (GAS), which is recognised by the World Health Organization as a form of mucinous adenocarcinoma of the cervix. Minimal deviation adenocarcinoma (MDA) of mucinous type (adenoma malignum) is considered an extremely well differentiated variant of GAS and is encompassed within the category of GAS...
December 9, 2017: Pathology
https://www.readbyqxmd.com/read/29222269/current-treatment-of-double-hit-and-double-expressor-lymphoma
#13
REVIEW
Patrick M Reagan, Andrew Davies
A 60-year-old female presented with abdominal pain and distension. Following computed tomography scans of the abdomen and pelvis, she was taken urgently to the operating room, with the belief that she had appendicitis with perforation. At laparotomy, the findings were consistent with an ovarian carcinoma; there was extensive infiltration of the ovary, bowel, and omental deposits. Cytoreductive surgery was performed including total abdominal hysterectomy and bilateral salpingo-oophorectomy. The final pathology, however, revealed infiltration with medium-sized atypical lymphoid cells positive for CD20, CD10, MYC, BLC2, and BCL6 by immunohistochemistry...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29221157/high-ptpn13-expression-in-high-grade-serous-ovarian-carcinoma-is-associated-with-a-better-patient-outcome
#14
Véronique D'Hondt, Magalie Lacroix-Triki, Marta Jarlier, Florence Boissiere-Michot, Carole Puech, Peter Coopman, Dionyssios Katsaros, Gilles Freiss
Background: Chromosome 4q loss of heterozygosity (LOH) is frequently observed in high-grade serous ovarian carcinoma (HGSOC). However, this LOH has not been clearly associated with the inactivation of any tumor suppressor gene(s). As the tumor suppressor gene PTPN13 is located on chromosome 4q21, we investigated its expression in HGSOC. Methods: PTPN13 protein expression was investigated by immunohistochemistry (IHC) in normal ovary epithelium and in 30 HGSOC samples, whereas PTPN13 mRNA expression was quantified by RT-PCR in another independent cohort of 28 HGSOC samples...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29204511/smarca4-germline-gene-mutation-in-a-patient-with-epithelial-ovarian-a-case-report
#15
Reshma Muppala, Talia Donenberg, Marilyn S Huang, Matthew P Schlumbrecht
Background: SMARCA4 is gene whose protein product participates in chromatin remodeling. Somatic mutations in this gene are associated with non-small cell lung cancer and malignant rhabdoid tumors, and both germline and somatic mutations are seen with small cell carcinoma of the ovary, hypercalcemic type. To date, there are no data identifying an association with more common epithelial carcinomas of the ovary. Case: The patient is a 57-year-old female without any significant family history of cancer, diagnosed with high-grade serous carcinoma of the ovary...
November 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/29203996/metachronous-synchronous-sternal-and-colonic-metastasis-with-asymptomatic-colo-colic-fistula-from-carcinoma-ovary-rare-presentation-of-ovarian-cancer
#16
Srinivas K G, Abid Ali Mirza, Shivananda Swamy, Amarendra S, Gopinath Ks
Ovarian cancer is one of the most common gynecological cancers worldwide. It is the third leading cause of cancer among women in India. Metastatic disease to the visceral organs from ovarian cancer occurs as a terminal event in the natural history of the disease. In particular, spread to the bone and large bowel is infrequently described. The risk of distant metastasis increases in a recurrent setting. We describe a case of a 77-year-old lady, who was diagnosed for ovarian carcinoma in 2007 and underwent primary cytoreductive surgery, stage IIIc...
December 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29199475/chromosomal-instability-and-cytotoxicity-induced-by-ribavirin-comparative-analysis-in-cell-lines-with-different-drug-metabolizing-profiles
#17
Carina Sperotto Librelotto, Daniel Simon, Ana Paula de Souza, Mário Reis Álvares-da-Silva, Rafael Rodrigues Dihl
Ribavirin is an important component of the treatment for hepatitis C virus (HCV) infection and, in combination with the new direct-acting antiviral (DAA) agents, comprises the major current therapeutic regimens. This study evaluated the cytotoxicity and chromosomal instability induced by ribavirin using the in vitro cytokinesis-block micronucleus cytome (CBMN-Cyt) assay in two cell lines with different expression levels of drug-metabolizing enzymes: human hepatocellular carcinoma cells (HepG2) and Chinese hamster ovary (CHO-K1) cells...
December 4, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29198337/ovarian-sex-cord-stromal-tumours-and-small-cell-tumours-pathological-genetic-and-management-aspects
#18
REVIEW
Stergios Boussios, Michele Moschetta, George Zarkavelis, Alexandra Papadaki, Aristides Kefas, Konstantina Tatsi
Non-epithelial ovarian cancers (NEOC) constitute a group of uncommon malignancies and their treatment is still a challenging task. Collectively, these tumours account for about 10% of all ovarian cancers and occur in all age groups from childhood to old-age. They include malignancies of germ cell origin, sex cord-stromal cell origin, and a variety of extremely rare ovarian cancers, such as small-cell carcinomas and sarcomas. Each of these classifications encompasses multiple histologic subtypes. It is imperative that these rare tumours are managed with accurate diagnosis, staging, and treatment, to optimise the outcome...
December 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29197096/observations-on-the-origin-of-ovarian-cortical-inclusion-cysts-in-women-undergoing-risk-reducing-salpingo-oophorectomy
#19
Kay J Park, Prusha Patel, Irina Linkov, Anjali Jotwani, Noah Kauff, Malcolm C Pike
AIMS: Evidence suggests that up to 70% of high-grade serous ovarian carcinomas (HGSCs) potentially arise from fallopian tube fimbriae, and that many of the remaining cases arise from within the ovary in cortical inclusion cysts (CICs) with a Müllerian phenotype (Müllerian-CICs). It has been proposed that Müllerian-CICs arise either from metaplasia of mesothelial ovarian surface epithelium (OSE) entrapped within the ovary after ovulation, or from normal tubal cells entrapped post-ovulation...
December 2, 2017: Histopathology
https://www.readbyqxmd.com/read/29178260/origin-of-clear-cell-carcinoma-nature-or-nurture
#20
David L Kolin, Daniela M Dinulescu, Christopher P Crum
A rare but serious complication of endometriosis is the development of carcinoma, and clear cell and endometrioid carcinomas of the ovary are the two most common malignancies which arise from endometriosis. They are distinct diseases, characterized by unique morphologies, immunohistochemical profiles, and responses to treatment. However, both arise in endometriosis and can share common mutations. The overlapping mutational profiles of clear cell and endometrioid carcinoma suggests that their varied histologies may be due to a different cell of origin which gives rise to each type of cancer...
November 27, 2017: Journal of Pathology
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