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Akdöner A, Kurt S, Yavuz O, Bayram E, Üresin M, Ulukuş EÇ. Effect of low uterine segment involvement on prognosis of early stage endometrial cancer. J Obstet Gynaecol Res 2024; 50:991-1001. [PMID: 38575743 DOI: 10.1111/jog.15933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/14/2024] [Indexed: 04/06/2024]
Abstract
AIM Our aim is to investigate the effect of uterine lower segment involvement on prognosis of early-stage endometrial cancer cases diagnosed and treated in our clinic. MATERIALS AND METHODS The file records of 316 cases reviewed retrospectively.Only stage I (a and b, n=209) cases were investigated, because they were more homogeneous group. RESULTS The lymphovascular invasion rate was found to be higher in patients with stage Ia and uterine lower segment involvement (p < 0.001). Adjuvant treatment requirement was higher in patients with stage Ia and uterine lower segment involvement (p < 0.001). Among stage Ia cases, the recurrence rate between 1 and 3 years was found to be higher in cases with uterine lower segment involvement (p = 0.001). Among the stage Ib cases, lymphovascular invasion was found to be higher in cases with uterine lower segment involvement (p < 0.001). The recurrence rate between 1 and 3 years was found to be higher in stage Ib compared to Ia (p = 0.01). Uterine lower segment involvement was found to be associated with high lymphovascular invasion rate in all stage I cases (p < 0.001). It was determined that the need for adjuvant treatment was higher in cases with uterine lower segment involvement (p < 0.001). It was determined that the probability of recurrence between 1 and 3 years was higher in cases with uterine lower segment involvement (p = 0.007). CONCLUSION Uterine lower segment involvement is associated with increased lymphovascular invasion even in the early stages. It is an important risk factor for systemic spread such as lymphovascular invasion, myometrial invasion, and lymph node involvement.
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Affiliation(s)
- Aslı Akdöner
- Gynecology and Obstetrics Department, Medical School, Dokuz Eylül University, İzmir, Turkey
| | - Sefa Kurt
- Gynecology and Obstetrics Department, Medical School, Dokuz Eylül University, İzmir, Turkey
| | - Onur Yavuz
- Gynecology and Obstetrics Department, Medical School, Dokuz Eylül University, İzmir, Turkey
| | - Emre Bayram
- Gynecology and Obstetrics Department, Medical School, Dokuz Eylül University, İzmir, Turkey
| | - Merve Üresin
- Gynecology and Obstetrics Department, Medical School, Dokuz Eylül University, İzmir, Turkey
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Horala A, Szubert S, Nowak-Markwitz E. Range of Resection in Endometrial Cancer-Clinical Issues of Made-to-Measure Surgery. Cancers (Basel) 2024; 16:1848. [PMID: 38791927 PMCID: PMC11120042 DOI: 10.3390/cancers16101848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/20/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024] Open
Abstract
Endometrial cancer (EC) poses a significant health issue among women, and its incidence has been rising for a couple of decades. Surgery remains its principal treatment method and may have a curative, staging, or palliative aim. The type and extent of surgery depends on many factors, and the risks and benefits should be carefully weighed. While simple hysterectomy might be sufficient in early stage EC, modified-radical hysterectomy is sometimes indicated. In advanced disease, the evidence suggests that, similarly to ovarian cancer, optimal cytoreduction improves survival rate. The role of lymphadenectomy in EC patients has long been a controversial issue. The rationale for systematic lymphadenectomy and the procedure of the sentinel lymph node biopsy are thoroughly discussed. Finally, the impact of the molecular classification and new International Federation of Gynecology and Obstetrics (FIGO) staging system on EC treatment is outlined. Due to the increasing knowledge on the pathology and molecular features of EC, as well as the new advances in the adjuvant therapies, the surgical management of EC has become more complex. In the modern approach, it is essential to adjust the extent of the surgery to a specific patient, ensuring an optimal, made-to-measure personalized surgery. This narrative review focuses on the intricacies of surgical management of EC and aims at summarizing the available literature on the subject, providing an up-to-date clinical guide.
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Affiliation(s)
- Agnieszka Horala
- Division of Gynaecological Oncology, Department of Gynaecology, Poznan University of Medical Sciences, 61-701 Poznan, Poland; (S.S.); (E.N.-M.)
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Davidesko S, Meirovitz M, Shaco-Levy R, Yarza S, Samueli B, Kezerle Y, Kessous R. The significance of lower uterine segment involvement in endometrial cancer. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2024; 50:108007. [PMID: 38382274 DOI: 10.1016/j.ejso.2024.108007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/19/2023] [Accepted: 02/05/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Limited data suggests lower uterine segment involvement (LUSI) in endometrial cancer may be associated with other poor prognostic factors. We assessed the unclear impact of LUSI on prognosis in endometrial cancer. METHOD ology: A revision of pathological samples following surgical staging between the years 2002-2022 was performed and clinical data collected from patients' records. Characteristics and outcomes of women with and without LUSI were compared and analysed. Kaplan Meyer survival curves compared overall survival (OS) and progression-free survival (PFS). RESULTS 429 women were included, of which 45 (10.5%) had LUSI. No differences were found between the groups regarding demographic or clinical characteristics. LUSI was significantly associated with lympho-vascular space invasion (40% vs. 22% p = 0.01), lymph node involvement (6.4% vs. 9.1%, p = 0.05), shorter PFS (4 vs. 5.5 years, p = 0.01) and OS (5.6 vs. 11.5 years, p = 0.03). Multivariate analysis showed higher hazard ratios for OS and PFS (1.55 95%CI 0.79-3.04 and 1.29 95%CI 0.66-2.53, respectively) but these were insignificant even in a sub-analysis of endometrioid histology (1.76 95%CI 0.89-3.46 and 1.35 95%CI 0.69-2.65, respectively). A trend towards decreased PFS and OS was demonstrated in the Kaplan Meyer survival curves for all cases (log rank test p = 0.5 and 0.29 respectively), endometrioid histology (log rank test p = 0.06 and 0.51 respectively) and early-stage disease (log rank test p = 0.63 and 0.3 respectively). CONCLUSION LUSI may be related to poorer outcome of endometrial cancer and may represent an additional factor to consider when contemplating adjuvant treatment, especially in endometrioid-type and early-stage disease.
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Affiliation(s)
- Sharon Davidesko
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel; Department of Gynecological Oncology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Mihai Meirovitz
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel; Department of Gynecological Oncology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ruthy Shaco-Levy
- Department of Pathology, Barzilai University Medical Center, Ben-Gurion University of the Negev, Ashkelon, Israel
| | - Shaked Yarza
- Clinical Research Center, Soroka University Medical Center, Israel
| | - Benzion Samueli
- Department of Pathology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yarden Kezerle
- Department of Pathology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Roy Kessous
- Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel; Department of Gynecological Oncology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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Kong TW, Kim J, Kim J, Lee J, Kim J, Son JH, Chang SJ. A predictive model for lymph node metastasis using tumor location in presumed early-stage endometrioid endometrial cancer patients. J Gynecol Oncol 2024; 35:35.e53. [PMID: 38302726 DOI: 10.3802/jgo.2024.35.e53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/26/2023] [Accepted: 12/31/2023] [Indexed: 02/03/2024] Open
Abstract
OBJECTIVE The aim of this study was to identify high- and low-risk subgroups of patients with lymph node (LN) metastasis in presumed early-stage endometrioid endometrial cancer (EC) patients. METHODS Clinicopathologic data of presumed early-stage endometrioid EC patients (n=361) treated with lymphadenectomy between March 2000 and July 2022 were analyzed. None of the patient had definite evidence of LN metastasis in a preoperative magnetic resonance imaging (MRI). A received operating characteristic curve analysis was conducted to define the sensitivity and specificity for the combined preoperative risk factors for LN metastasis, which was determined by multivariate analysis. RESULTS Nineteen patients (5.3%) had LN metastasis. Multivariate analysis identified cervical stromal invasion on MRI (odds ratio [OR]=4.386; 95% confidence interval [CI]=1.020-18.852; p=0.047), cornual location of tumor on MRI (OR=36.208; 95% CI=7.902-165.913; p<0.001), and lower uterine segment/isthmic location of tumor on MRI (OR=8.454; 95% CI=1.567-45.610; p=0.013) as independent prognostic factors associated with LN metastasis. Patients were categorized into low- and high-risk groups according to risk criteria. Significant differences in the rates of LN metastasis were observed between the two groups (0.4% vs. 22.2%, p<0.001). CONCLUSION Approximately 95% of presumed early-stage endometrioid EC patients did not have LN metastasis. A model using tumor location was significantly correlated with the risk of LN metastasis. Even in presumed early-stage endometrioid EC patients, therefore, tumor location should be investigated to determine whether to perform LN assessment.
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Affiliation(s)
- Tae-Wook Kong
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea
| | - Jayoun Kim
- Medical Research Collaborating Center, Seoul National University College of Medicine, Seoul, Korea
| | - Junghoe Kim
- Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea
| | - Jimin Lee
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea
| | - Jeeyeon Kim
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea
| | - Joo-Hyuk Son
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea
| | - Suk-Joon Chang
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Korea.
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Matias-Guiu X, Selinger CI, Anderson L, Buza N, Ellenson LH, Fadare O, Ganesan R, Ip PPC, Palacios J, Parra-Herran C, Raspollini MR, Soslow RA, Werner HMJ, Lax SF, McCluggage WG. Data Set for the Reporting of Endometrial Cancer: Recommendations From the International Collaboration on Cancer Reporting (ICCR). Int J Gynecol Pathol 2022; 41:S90-S118. [PMID: 36305536 DOI: 10.1097/pgp.0000000000000901] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Endometrial cancer is one of the most common cancers among women. The International Collaboration on Cancer Reporting (ICCR) developed a standardized endometrial cancer data set in 2011, which provided detailed recommendations for the reporting of resection specimens of these neoplasms. A new data set has been developed, which incorporates the updated 2020 World Health Organization Classification of Female Genital Tumors, the Cancer Genome Atlas (TCGA) molecular classification of endometrial cancers, and other major advances in endometrial cancer reporting, all of which necessitated a major revision of the data set. This updated data set has been produced by a panel of expert pathologists and an expert clinician and has been subject to international open consultation. The data set includes core elements which are unanimously agreed upon as essential for cancer diagnosis, clinical management, staging, or prognosis and noncore elements which are clinically important, but not essential. Explanatory notes are provided for each element. Adoption of this updated data set will result in improvements in endometrial cancer patient care.
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Yamazaki H, Takeshita S, Todo Y, Matsumiya H, Shimada C, Minobe S, Tsuruta T, Kato H. Imaging-based definition of lower uterine segment carcinoma to improve the detection sensitivity of probable Lynch syndrome. Jpn J Clin Oncol 2020; 50:270-275. [PMID: 31958127 DOI: 10.1093/jjco/hyz162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 10/05/2019] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate a magnetic resonance imaging-based definition of lower uterine segment carcinoma. METHODS We retrospectively reviewed 587 consecutive patients with endometrial cancer who underwent hysterectomy. Lower uterine segment carcinoma was determined through pathological examination and magnetic resonance imaging assessment. For imaging assessment, the location of the inner lining of the uterus was classified into four equal parts on a sagittal section image. A tumor was defined as lower uterine segment carcinoma when its thickest part was located in the second or the third part from the uterine fundus. Lower uterine segment carcinoma was further divided into lower uterine segment in a narrow sense, upon which diagnosis was exclusively based on pathological findings, and lower uterine segment in a broad sense that were the remaining lower uterine segment carcinomas except lower uterine segment carcinomas in a narrow sense. The relationship between lower uterine segment carcinoma and probable Lynch syndrome was investigated. Patients with loss of MSH2, MSH6, and PMS2 expression or those with tumors with loss of MLH1 and absence of MLH1 promoter methylation were diagnosed as probable Lynch syndrome. RESULTS Lower uterine segment carcinoma was identified in 59 (10.2%) patients. Twenty-eight (47.5%) patients were categorized as lower uterine segment in a narrow sense and 31 (52.5%) as lower uterine segment in a broad sense. Among them, probable Lynch syndrome was identified in 12 (20.3%) cases. There was no difference in clinical profiles, including the prevalence of probable Lynch syndrome between the two categories. CONCLUSIONS A magnetic resonance imaging-based expanded definition of lower uterine segment carcinoma is likely to secure characteristics equivalent to a conventional pathology-based definition of lower uterine segment carcinoma. The novel definition of lower uterine segment carcinoma might improve the detection of probable Lynch syndrome.
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Affiliation(s)
- Hiroyuki Yamazaki
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Hokkaido, Japan, and
| | - Sho Takeshita
- Department of Obstetrics and Gynecology, Ichinomiya municipal hospital, Ichinomiya, Aichi, Japan
| | - Yukiharu Todo
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Hokkaido, Japan, and
| | - Hiroko Matsumiya
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Hokkaido, Japan, and
| | - Chisa Shimada
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Hokkaido, Japan, and
| | - Shinichiro Minobe
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Hokkaido, Japan, and
| | - Tomohiko Tsuruta
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Hokkaido, Japan, and
| | - Hidenori Kato
- Division of Gynecologic Oncology, National Hospital Organization, Hokkaido Cancer Center, Sapporo, Hokkaido, Japan, and
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Standardized terminology of apical structures in the female pelvis based on a structured medical literature review. Am J Obstet Gynecol 2020; 222:204-218. [PMID: 31805273 DOI: 10.1016/j.ajog.2019.11.1262] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/04/2019] [Accepted: 11/17/2019] [Indexed: 12/13/2022]
Abstract
The objectives of this study were to review the published literature and selected textbooks, to compare existing usage to that in Terminologia Anatomica, and to compile standardized anatomic nomenclature for the apical structures of the female pelvis. MEDLINE was searched from inception until May 30, 2017, based on 33 search terms generated by group consensus. Resulting abstracts were screened by 11 reviewers to identify pertinent studies reporting on apical female pelvic anatomy. Following additional focused screening for rarer terms and selective representative random sampling of the literature for common terms, accepted full-text manuscripts and relevant textbook chapters were extracted for anatomic terms related to apical structures. From an initial total of 55,448 abstracts, 193 eligible studies were identified for extraction, to which 14 chapters from 9 textbooks were added. In all, 293 separate structural terms were identified, of which 184 had Terminologia Anatomica-accepted terms. Inclusion of several widely used regional terms (vaginal apex, adnexa, cervico-vaginal junction, uretero-vesical junction, and apical segment), structural terms (vesicouterine ligament, paracolpium, mesoteres, mesoureter, ovarian venous plexus, and artery to the round ligament) and spaces (vesicocervical, vesicovaginal, presacral, and pararectal) not included in Terminologia Anatomica is proposed. Furthermore, 2 controversial terms (lower uterine segment and supravaginal septum) were identified that require additional research to support or refute continued use in medical communication. This study confirms and identifies inconsistencies and gaps in the nomenclature of apical structures of the female pelvis. Standardized terminology should be used when describing apical female pelvic structures to facilitate communication and to promote consistency among multiple academic, clinical, and surgical disciplines.
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Identifiable Risk Factors for Lymph Node Metastases in Grade 1 Endometrial Carcinoma. Int J Gynecol Cancer 2017; 27:1694-1700. [DOI: 10.1097/igc.0000000000001070] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Affiliation(s)
- Debra S. Heller
- Departments of Pathology and Laboratory Medicine, Rutgers–New Jersey Medical School, Newark, NJ
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Inoue K, Tsubamoto H, Hori M, Ogasawara T, Takemura T. A case of endometrioid adenocarcinoma developing 8 years after conservative management for atypical polypoid adenomyoma. GYNECOLOGIC ONCOLOGY CASE REPORTS 2014; 8:21-3. [PMID: 24707458 DOI: 10.1016/j.gynor.2014.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 02/25/2014] [Indexed: 10/25/2022]
Abstract
•Endometrioid adenocarcinoma may develop during the long-term follow-up of APA.•Atypical polypoid adenomyoma is a precursor of endometrioid adenocarcinoma.•Careful follow-up is needed for the conservative management of APA.
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Affiliation(s)
- Kayo Inoue
- Department of Obstetrics and Gynecology, Meiwa General Hospital, 4-31 Kaminaruo-Cho, Nishinomiya, Hyogo 663-8186, Japan
| | - Hiroshi Tsubamoto
- Department of Obstetrics and Gynecology, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
| | - Masateru Hori
- Department of Obstetrics and Gynecology, Meiwa General Hospital, 4-31 Kaminaruo-Cho, Nishinomiya, Hyogo 663-8186, Japan
| | - Toshitada Ogasawara
- Department of Obstetrics and Gynecology, Okubo Hospital, 2095-1, Okubo-cho Okubo, Akashi, Hyogo 674-0051, Japan
| | - Tadashi Takemura
- Takemura Ladies Clinic, 19-3, Koshien-Rokubancho, Nishinomiya, Hyogo, Japan
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High-grade endometrial cancer: Revisiting the impact of tumor size and location on outcomes. Gynecol Oncol 2014; 132:44-9. [DOI: 10.1016/j.ygyno.2013.10.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 10/10/2013] [Accepted: 10/22/2013] [Indexed: 11/17/2022]
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The pattern of myometrial invasion as a predictor of lymph node metastasis or extrauterine disease in low-grade endometrial carcinoma. Am J Surg Pathol 2013; 37:1728-36. [PMID: 24061515 DOI: 10.1097/pas.0b013e318299f2ab] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The purpose of this study was to examine predictors of lymph node (LN) metastases or extrauterine disease (ED) in low-grade (FIGO grade 1 or 2) endometrioid carcinoma (LGEC) in a multi-institutional setting. For LGEC with and without LN metastasis or ED, each of the 9 participating institutions evaluated patients' age, tumor size, myometrial invasion (MI), FIGO grade, % solid component, the presence or absence of papillary architecture, microcystic, elongated, and fragmented glands (MELF), single-cell/cell-cluster invasion (SCI), lymphovascular invasion (LVI), lower uterine segment (LUS) and cervical stromal (CX) involvement, and numbers of pelvic and para-aortic LNs sampled. A total of 304 cases were reviewed: LN(+) or ED(+), 96; LN(-)/ED(-), 208. Patients' ages ranged from 23 to 91 years (median 61 y). Table 1 summarizes the histopathologic variables that were noted for the LN(+) or ED(+) group: tumor size ≥2 cm, 93/96 (97%); MI>50%, 54/96 (56%); MELF, 67/96 (70%); SCI, 33/96 (34%); LVI, 79/96 (82%); >20% solid, 65/96 (68%); papillary architecture present, 68/96 (72%); LUS involved, 64/96 (67%); and CX involved, 41/96 (43%). For the LN(-)/ED(-) group, the results were as follows: tumor size ≥2 cm, 152/208 (73%); MI>50%, 56/208 (27%); MELF, 79/208 (38%); SCI, 19/208 (9%); LVI, 56/208 (27%); >20% solid, 160/208 (77%); papillary architecture present, 122/208 (59%); LUS involved, 77/208 (37%); CX involved, 24/208 (12%). There was no evidence of a difference in the number of pelvic or para-aortic LNs sampled between groups (P=0.9 and 0.1, respectively). After multivariate analysis, the depth of MI, CX involvement, LVI, and SCI emerged as significant predictors of advanced-stage disease. Although univariate analysis pointed to LUS involvement, MELF pattern of invasion, and papillary architecture as possible predictors of advanced-stage disease, these were not shown to be significant by multivariate analysis. This study validates MI, CX involvement, and LVI as significant predictors of LN(+) or ED(+). The association of SCI pattern with advanced-stage LGEC is a novel finding.
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Masuda K, Banno K, Yanokura M, Kobayashi Y, Kisu I, Ueki A, Ono A, Nomura H, Hirasawa A, Susumu N, Aoki D. Carcinoma of the Lower Uterine Segment (LUS): Clinicopathological Characteristics and Association with Lynch Syndrome. Curr Genomics 2011; 12:25-9. [PMID: 21886452 PMCID: PMC3129040 DOI: 10.2174/138920211794520169] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 12/23/2010] [Accepted: 12/28/2010] [Indexed: 11/23/2022] Open
Abstract
Endometrial cancer arises from the uterine body and fundus in many cases, but can also originate from the lower region of the uterine body through the upper region of the cervix. Such tumors are referred to as carcinoma of the lower uterine segment (LUS) or isthmus, and account for 3-6.3% of all cases of endometrial cancer. This relatively low incidence has permitted performance of only small-scale studies, but the clinical and pathological characteristics of carcinoma of the LUS in all these reports have differed from those of other endometrial cancers. Generally, endometrial cancer is classified into estrogen-dependent endometrioid adenocarcinoma (designated as type I), and non-endometrioid types that are less associated with estrogen and include poorly differentiated adenocarcinoma (type II). In some reports, carcinoma of the LUS has been found to have type II characteristics. Carcinoma of the LUS has also been associated with Lynch syndrome, a hereditary disease with frequent development of colorectal, endometrial, and ovarian cancers. Lynch syndrome is thought to be induced by mismatch repair gene mutation. The frequency of Lynch syndrome in cases of general endometrial cancer is 1-2%. In contrast, the frequency in patients with carcinoma of the LUS is much higher, with up to 29% of cases diagnosable with Lynch syndrome and a high frequency of hMSH2 mutation found in one study. This suggests that further investigation of the clinical and pathological characteristics of carcinoma of the LUS and the association with Lynch syndrome is required through performance of a large-scale survey.
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Affiliation(s)
- Kenta Masuda
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
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Kizer NT, Gao F, Guntupalli S, Thaker PH, Powell MA, Goodfellow PJ, Mutch DG, Zighelboim I. Lower uterine segment involvement is associated with poor outcomes in early-stage endometrioid endometrial carcinoma. Ann Surg Oncol 2010; 18:1419-24. [PMID: 21181281 DOI: 10.1245/s10434-010-1454-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Indexed: 11/18/2022]
Abstract
BACKGROUND The clinicopathologic significance of lower uterine segment involvement (LUSI) in endometrial cancer patients remains unclear. Although LUSI has been reported to be a prognostic indicator, literature is limited. METHODS We studied 481 surgically staged endometrioid endometrial cancers with disease confined to the uterus (FIGO 1988 stage I or II). Primary outcomes were overall survival (OS) and disease-free survival (DFS). The relationships between LUSI and OS and DFS were assessed using the Kaplan-Meier method and Cox proportional hazard models. The t test or Fisher exact test was used for evaluating relationships between variables of interest. RESULTS LUSI was present in 223 cases (46.4%), and was associated with both decreased disease free survival (P = 0.02) and overall survival (P = 0.01) in univariate analysis. Multivariate analysis confirmed the association between LUSI and increased risk for recurrence [hazard ratio (HR) 2.27; 95% confidence interval (95% CI) 1.09-4.7; P = 0.03] and increased mortality (HR 1.76; 95% CI 1.12-2.78; P = 0.01). CONCLUSIONS LUSI in patients with early-stage endometrioid endometrial cancer is associated with decreased survival.
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Affiliation(s)
- Nora T Kizer
- Department of Obstetrics and Gynecology, Washington University School of Medicine, Saint Louis, MO, USA.
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Gemer O, Gdalevich M, Voldarsky M, Barak F, Ben Arie A, Schneider D, Levy T, Anteby E, Lavie O. Lower uterine segment involvement is associated with adverse outcome in patients with stage I endometroid endometrial cancer: Results of a multicenter study. Eur J Surg Oncol 2009; 35:865-9. [DOI: 10.1016/j.ejso.2008.10.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Revised: 08/03/2008] [Accepted: 10/14/2008] [Indexed: 11/30/2022] Open
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