Endometriosis-associated ovarian cancer is not a distinct clinical entity among young patients: A 12-year cohort study

ConclusionsEndometriosis is not independently associated with the prognosis of OEC and OCCC among young patients. The intrinsic relationship between endometriosis and ovarian cancer warrants further investigation.
Source: European Journal of Surgical Oncology (EJSO) - Category: Surgery Source Type: research

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This review is an appraisal of the current state of knowledge of 2 enigmatic histotypes of ovarian carcinoma: endometrioid and clear cell carcinoma. Both show an association endometriosis and the hereditary nonpolyposis colorectal cancer (Lynch) syndrome, and both typically present at an early stage. Pathologic and immunohistochemical features that distinguish these tumors from high-grade serous carcinomas, each other, and other potential mimics are discussed, as are staging, grading, and molecular pathogenesis.
Source: Surgical Pathology Clinics - Category: Pathology Authors: Source Type: research
ConclusionsEAOC is a distinct disease that affects women with benign endometriosis at younger ages than classic ovarian cancer. Understanding the imaging features of malignant transformation of endometriosis is essential for early diagnosis and timely definitive treatment.
Source: Abdominal Imaging - Category: Radiology Source Type: research
CONCLUSIONS: The EAOC patients were often diagnosed at a younger age, an earlier stage, and related to nulliparity and infertility. Patients with EAOC had a better prognosis than non-EAOC, early stage rather than association with endometriosis may be the driver of survival. PMID: 30913953 [PubMed - as supplied by publisher]
Source: Cancer Biology and Therapy - Category: Cancer & Oncology Authors: Tags: Cancer Biol Ther Source Type: research
Authors: Kobayashi H, Yamada Y, Kawahara N, Ogawa K, Yoshimoto C Abstract In the present study, we summarize the role of the shared and independent (epi)genetic background between endometrioid carcinoma (EC) and clear cell carcinoma (CCC), two histological subtypes of endometriosis-associated ovarian cancer (EAOC). Using the PubMed database, we conducted a literature review of various studies related to the malignant transformation of endometriosis. Both endometriosis and EAOC face potential environmental hazards, including hemoglobin (Hb), heme and free iron, which induces DNA damage and mutations. Although EC is ...
Source: Oncology Reports - Category: Cancer & Oncology Tags: Oncol Rep Source Type: research
Authors: Matalliotakis M, Matalliotaki C, Goulielmos GN, Patelarou E, Tzardi M, Spandidos DA, Arici A, Matalliotakis I Abstract We retrospectively analyzed clinicopathological data in two different countries over the past years on the association between ovarian endometriosis and ovarian carcinoma. Medical and pathological reports were evaluated from 1,000 patients with endometriosis from two different geographical areas. The prevalence and women characteristics of cases were analyzed. Endometriosis-associated ovarian cancer was present in 20 (2%) cases, among the study subjects. The observed prevalence was 12 (60%...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Authors: Xia Y, Xiong N, Huang Y Abstract Relationship between the methylation status of the RASSF2A gene promoter and endometriosis-associated ovarian cancer (EAOC) was explored. Between January 2013 and January 2016, tissue samples were collected from 30 patients diagnosed with ovarian endometriosis cyst (EC group), 30 patients diagnosed with ovarian endometrial adenocarcinoma (OEA group) and 30 patients diagnosed with ovarian clear cell carcinoma (OCC group). Additionally, 30 cases of normal endometrium tissues were collected for the control group. The methylation status of the RASSF2A promoter was evaluated by ...
Source: Journal of Biological Regulators and Homeostatic Agents - Category: Biomedical Science Tags: J Biol Regul Homeost Agents Source Type: research
This study retrospectively investigated 224 CCC and EC patients treated in Samsung Medical Center from 2001 to 2015 to identify cancer arising from endometriosis according to Sampson and Scott criteria. Propensity score matching was performed to compare patients arising from endometriosis to patients without endometriosis (ratio 1:1) according to stage, age, lymph node metastasis (LNM), cancer antigen (CA)-125 level, and residual status after debulking surgery. RESULTS: Forty-five cases arising from endometriosis were compared with 179 cases without endometriosis. CCC and EC arising from endometriosis tended to present...
Source: Journal of Gynecologic Oncology - Category: OBGYN Tags: J Gynecol Oncol Source Type: research
Abstract 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. Cochrane and colleagues...
Source: The Journal of Pathology - Category: Pathology Authors: Tags: Invited Commentary Source Type: research
Authors: Wang Q, Wang L, L Y, Ding X, Liu A Abstract PURPOSE: To investigate the expression and relevant clinical and pathological significance of AT-rich interactive domaincontaining protein 1A (ARID1A) mRNA in endometriosis-associated ovarian cancer. METHODS: The clinical and pathological data of 63 patients with ovarian clear cell carcinoma (OCCC) and of 43 patients with ovarian endometrioid adenocarcinoma (OEAC) were collected. The expression of ARID1A-encoded protein, baf250a, in ovarian cancer tissues was detected using immunohistochemistry. The ARID1A mRNA expression was detected via RNAscope hybridizati...
Source: Journal of B.U.ON. - Category: Cancer & Oncology Tags: J BUON Source Type: research
Study Objective: The aim of this investigation was to compare outcomes of patients with clear cell carcinoma (CCC) and endometrioid carcinoma (EC) of the ovary arising in endometriosis (ES) to CCC and EC not arising in ES.
Source: The Journal of Minimally Invasive Gynecology - Category: OBGYN Authors: Source Type: research
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