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1.
J Pers Med ; 14(6)2024 Jun 04.
Article in English | MEDLINE | ID: mdl-38929822

ABSTRACT

The purpose of this study was to establish the noninferiority of robotic single-site (RSS) surgery compared with multiport laparoscopic (MPL) surgery in surgical outcomes and overall survival for early endometrial cancer. This study was conducted retrospectively in a single center and included 421 patients who underwent either RSS (n = 146) or MPL (n = 275) surgery between 2014 and 2022. In terms of perioperative outcomes, the RSS group had a longer operating time than the MPL surgery group (mean (standard deviation [SD]) RSS 97.55 [29.79] vs. MPL 85.56 [26.13], p < 0.001). However, no significant differences in estimated blood loss or perioperative complications were found between the groups (p = 0.196 and p = 0.080, respectively). The patients in the RSS group were discharged earlier than those in the MPL group (mean [SD]): 4.06 [3.24] vs. 9.39 [4.76], p < 0.001). Regarding oncologic outcomes, no significant differences in the type of therapy, disease stage, tumor grade, histopathological type, or lymphovascular invasion were found between the groups. No statistically significant differences were found in the disease-free (p = 0.27) and overall survival rates (p = 0.5) either. In conclusion, this study suggests that RSS and MPL surgery are both safe and effective options for staging operations in patients with early-stage endometrial cancer.

2.
J Pers Med ; 13(5)2023 Apr 26.
Article in English | MEDLINE | ID: mdl-37240903

ABSTRACT

BACKGROUND: The mainstay of treatment for early-stage cervical cancer is surgery; we present a 5-year experience of robotic single-site radical hysterectomy (RSRH) focused on surgical and oncologic outcomes. METHODS: This retrospective study included 44 cases of RSRH performed in patients with early-stage cervical cancer. RESULTS: The median follow-up period for the 44 patients was 34 months. The mean total operation time was 156.07 ± 31.77 min, while mean console time was 95.81 ± 24.95 min. Two cases had complications, which required surgical management, while four cases (9.1%) exhibited recurrence. The disease-free survival rate at 5 years was 90.9%. The sub-division analysis showed that Stage Ia2 and stage Ib1 patient sub-group showed better DFS than that of the stage Ib2 patient sub-group. The learning curve analysis showed that the CUSUM-T initially peaks at the sixth case then gradually decreases before rising and peaking at the 24th case. After 24th case, the CUSUM-T gradually decreases and reaches zero. CONCLUSION: The surgical outcomes of RSRH for early-stage cervical cancer treatment were safe and acceptable. However, RSRH could be considered carefully only in well-selected patient groups. Large-scale prospective studies are necessary in the future to validate the results.

3.
J Cancer ; 14(4): 600-610, 2023.
Article in English | MEDLINE | ID: mdl-37057288

ABSTRACT

Background: This study aimed to determine the optimal combination of biomarkers that can predict epithelial ovarian cancer (EOC) and compare the combination with the risk of ovarian malignancy algorithm (ROMA) or Copenhagen index (CPH-I). Methods: Data from 66 patients with EOC and 599 patients with benign ovarian masses who underwent definitive tissue diagnosis of adnexal masses between January 2017 and March 2021 were analyzed. The Mann-Whitney U test or Kruskal-Wallis test was used for between-group comparisons of medians. Logistic regression was used to establish an EOC predictor model. Area under the curve (AUC) comparisons between models were performed using the Delong nonparametric approach. Results: The median age of the patients was 43 years. Twenty-nine (43.9%) patients had early-stage disease (stages I-II) and 37 (56.1%) patients had advanced-stage disease (stages III-IV). The median age, body mass index, white blood cell count, hemoglobin-to-red cell distribution width ratio (HRR), platelet count, platelet-to-lymphocyte ratio, lymphocyte-to-monocyte ratio, serum albumin level, cancer antigen 125, human epididymal secretory protein 4 (HE4), ROMA, and CPH-I were significantly different between the stage I-IV EOC and benign ovarian mass groups. Multivariate logistic regression analysis revealed that HE4, HRR, and computed tomography (CT) imaging were significant predictors of both stages I-IV and I-II EOC. Using these covariates, an interim model (IM) (consisting of HE4 and HRR) and a full model (FM) (consisting of HE4, HRR, and CT imaging) were constructed. When predicting stage I-IV EOC, the AUC of IM was comparable to that of ROMA or CPH-I, whereas the AUC of FM outperformed ROMA or CPH-I. In predicting stage I-II EOC, the AUC of IM was comparable to that of CPH-I but higher than that of ROMA, and the AUC of FM outperformed ROMA or CPH-I. Conclusion: FM outperformed ROMA or CPH-I in predicting stage I-IV EOC and stage I-II EOC. Therefore, FM could be a promising model for improving preoperative prediction of EOC at an early stage. However, further prospective studies are required to validate these results.

4.
J Yeungnam Med Sci ; 40(2): 202-206, 2023 Apr.
Article in English | MEDLINE | ID: mdl-35570649

ABSTRACT

Cesarean scar pregnancy (CSP) is a rare complication that occurs in less than 1% of ectopic pregnancies, and uterine didelphys is one of the rarest uterine forms. We report a successful laparoscopic excision and repair of CSP in a woman with uterine didelphys and a double vagina. A 34-year-old gravida one, para one woman with a history of low transverse cesarean section presented to our hospital with a suspected CSP. She was confirmed to have uterine didelphys with a double vagina during an infertility examination 7 years earlier. Magnetic resonance imaging showed a 2.5-cm gestational sac-like cystic lesion in the lower segment of the right uterus at the cesarean scar. We decided to perform a laparoscopic approach after informing the patient of the surgical procedure. The lower segment of the previous cesarean site was excised with monopolar diathermy to minimize bleeding. We identified the gestational sac in the lower segment of the right uterus, which was evacuated using spoon forceps. The myometrium and serosa of the uterus were sutured layer-by-layer using synthetic absorbable sutures. No remnant gestational tissue was visible on follow-up ultrasonography one month after the surgery. This laparoscopic approach to CSP in a woman with uterine didelphys is an effective and safe method of treatment. In women with uterine anomalies, it is important to confirm the exact location of the gestational sac by preoperative imaging for successful surgery.

5.
Biomol Ther (Seoul) ; 30(2): 170-178, 2022 Mar 01.
Article in English | MEDLINE | ID: mdl-35221299

ABSTRACT

The airway epithelium is equipped with the ability to resist respiratory disease development and airway damage, including the migration of airway epithelial cells and the activation of TLR3, which recognizes double-stranded (ds) RNA. Primary cilia on airway epithelial cells are involved in the cell cycle and cell differentiation and repair. In this study, we used Beas-2B human bronchial epithelial cells to investigate the effects of the TLR3 agonist polyinosinic:polycytidylic acid [Poly(I:C)] on airway cell migration and primary cilia (PC) formation. PC formation increased in cells incubated under serum deprivation. Migration was faster in Beas-2B cells pretreated with Poly(I:C) than in control cells, as judged by a wound healing assay, single-cell path tracking, and a Transwell migration assay. No changes in cell migration were observed when the cells were incubated in conditioned medium from Poly(I:C)-treated cells. PC formation was enhanced by Poly(I:C) treatment, but was reduced when the cells were exposed to the ciliogenesis inhibitor ciliobrevin A (CilioA). The inhibition of Beas-2B cell migration by CilioA was also assessed and a slight decrease in ciliogenesis was detected in SARS-CoV-2 spike protein (SP)-treated Beas-2B cells overexpressing ACE2 compared to control cells. Cell migration was decreased by SP but restored by Poly(I:C) treatment. Taken together, our results demonstrate that impaired migration by SP-treated cells can be attenuated by Poly(I:C) treatment, thus increasing airway cell migration through the regulation of ciliogenesis.

6.
Gynecol Oncol Rep ; 37: 100835, 2021 Aug.
Article in English | MEDLINE | ID: mdl-34377757

ABSTRACT

Epithelioid sarcomas (ESs) of the vulva are extremely rare soft tissue tumors characterized by an aggressive clinical course and a poor prognosis. The proximal type of ES occurs in the trunk and external genital area and has higher recurrence and distant metastasis rates than the distal type, which is found in the upper and lower extremities. We describe a case of a vulvar ES in a 24-year-old patient who was referred from the department of plastic surgery with protruding mushroom-like lesions in multiple areas, including the lower abdomen, whole vulva, anus, and both inguinal lesions. A biopsy of the lesions confirmed a proximal-type ES. Computed tomography and magnetic resonance imaging revealed multiple metastatic lesions in several regions, including the perineum, vagina, and inguinal regions; nodal metastases in the left external iliac and right inguinal region; and distant metastases in the lungs, pleura of the left lung, bones, and soft tissue. The patient underwent active palliative radiotherapy, followed by chemotherapy, and showed a partial response to treatment. Nineteen months after the initial diagnosis, the patient expired due to cancer progression and pneumothorax.

7.
Cancer Invest ; 39(10): 885-892, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34279158

ABSTRACT

The aim of this study is to analyze the correlation between clinically significant histologic results and HPV in women with AGC in pap test. Of the 311 women confirmed as AGC, 111 women (35.7%) was identified as positive for HPV. In the AGC analysis, cervical lesions were significantly more common in HPV positive group compared to HPV negative group (61.2 vs. 10.5%, p < 0.001). In contrast, endometrial lesions were not associated with HPV infection (8.1 vs. 4.5%, p = 0.12). The HPV-DNA testing in women with AGC may be a useful tool for predicting clinically significant cervical lesions.


Subject(s)
Cervix Uteri/pathology , DNA, Viral/analysis , Papanicolaou Test , Papillomaviridae/isolation & purification , Precancerous Conditions/virology , Uterine Cervical Neoplasms/virology , Adult , Aged , Female , Humans , Middle Aged , Papillomaviridae/genetics , Young Adult
8.
Int J Med Robot ; 17(4): e2255, 2021 Aug.
Article in English | MEDLINE | ID: mdl-33817949

ABSTRACT

BACKGROUND: This study aimed to compare the surgical outcomes and cost of robotic single-site radical hysterectomy (RSSRH) versus robotic multiport radical hysterectomy (RMPRH) with pelvic lymph node dissection in early stage cervical cancer. METHODS: Sixty-two patients with early stage cervical cancer were recruited between November 2011 and July 2017 and underwent RSSRH (20 patients) and RMPRH (42 patients) for early stage cervical cancer using the da Vinci Si Surgical System (Intuitive Surgical). RESULTS: There were no significant difference between the two groups in most of parameters. However, postoperative hospital discharge and total hospital costs for RSSRH were significantly shorter than RMPRH (both p < 0.001). However, lymph node retrieval of RMPRH was significantly higher than RSSRH in (18.0 vs. 9.5, respectively; p < 0.001). CONCLUSIONS: RSSRH has comparable surgical outcomes to the RMPRH method. RSSRH could be considered a surgical option in a well-selected patient group.


Subject(s)
Laparoscopy , Robotic Surgical Procedures , Robotics , Uterine Cervical Neoplasms , Female , Humans , Hysterectomy , Lymph Node Excision , Retrospective Studies , Treatment Outcome , Uterine Cervical Neoplasms/surgery
9.
J Clin Med ; 10(4)2021 Feb 10.
Article in English | MEDLINE | ID: mdl-33578930

ABSTRACT

This study aimed evaluate the feasibility of modified laparoscopic transabdominal cervicoisthmic cerclage (LTCC) and its impact on recurrent pregnancy loss (RPL) and is a retrospective observational cohort study of patients who underwent modified LTCC from 2003 to 2018 (n = 299). The surgery was performed at a mean gestational age of 12.5 weeks (range 10.5-17.5 weeks). Of the 299 patients, 190 were reported as having undergone abortion (one abortion: 91 (47.9%), two: 59 (31.1%), three or more: 40 (21.1%)) before the present pregnancy and prior to the surgery. The mean operation time was 47.4 min (range 15-100 min). We followed up with 205 of 299 patients and recorded their obstetric outcomes. There were 176 successful deliveries via cesarean section, and the fetal survival rate was 85.9% (176/205). The results of this study suggest that modified LTCC is a safe and feasible surgical option during pregnancy for patients with a history of RPL due to cervical factors.

10.
Gynecol Oncol Rep ; 34: 100663, 2020 Nov.
Article in English | MEDLINE | ID: mdl-33204794

ABSTRACT

BACKGROUND: Uterine smooth muscle tumor of uncertain malignant potential (STUMP) is a rare tumor belonging to a group of smooth muscle tumors that possess both benign and malignant features, complicating the diagnosis.Case report.We present the case of a 41-year-old primiparous woman who complained of heavy menstrual bleeding and severe pressure symptoms in the lower abdomen for 3 months. Magnetic resonance imaging revealed a large intramural myoma measuring 35 × 25 cm in the lower uterine corpus. A laparotomy including total hysterectomy was performed. Grossly, the uterine mass measured 38.5 × 35.4 × 20.4 cm in the largest diameter and weighed 18.3 kg. Pathological analysis revealed a uterine mass diagnosed as a smooth muscle tumor of uncertain malignant potential. The patient was normally discharged 7 days after surgery and decided to follow up without further treatment. At the time of this report, the patient had been followed up as an outpatient for 18 months without recurrence. CONCLUSION: Giant uterine STUMP is extremely rare and difficult to diagnose on physical examination and imaging findings alone. It is important to consider the possibility of an underlying malignancy when performing a preoperative examination and to perform frozen biopsy if malignancy is suspected. During follow-up, patients should undergo consultation with a gynecologic oncologist and should be surveilled closely because of the possibility of recurrence or metastasis.

11.
Obstet Gynecol Sci ; 62(3): 149-156, 2019 May.
Article in English | MEDLINE | ID: mdl-31139590

ABSTRACT

OBJECTIVE: The aims of this study were to introduce surgical guidelines, and to evaluate the feasibility and safety of a robotic single-site staging (RSSS) operation for early-stage endometrial cancer. METHODS: Patients with a preoperative diagnosis of endometrial cancer (International Federation of Gynecology and Obstetrics stages IA to IB) from endometrial curettage and preoperative imaging studies were selected at Dongsan Medical Center from March 2014 to November 2015. All surgical procedures, including hysterectomy, salpingo-oophorectomy, bilateral pelvic node dissection, and cytology aspiration, were performed by robotic single-site instruments (da Vinci Si® surgical system; Intuitive Surgical, Sunnyvale, CA, USA). RESULTS: A total of 15 women with early-stage endometrial cancer underwent the RSSS operation. The median patient age and body mass index were 53 years (range, 37-70 years) and 25.4 kg/m2 (range, 18.3-46.4 kg/m2). The median docking time, console time, and total operative time were 8 minutes (range, 4-15 minutes), 75 minutes (range, 55-115 minutes), and 155 minutes (range, 125-190 minutes), respectively. The median retrieval of both pelvic lymph nodes was 9 (range, 6-15). There were no conversions to laparoscopy or laparotomy. CONCLUSION: The RSSS operation is feasible and safe in patients with early-stage endometrial cancer. In this study, operative times were reasonable, and the surgical procedure was well-tolerated by the patients. Further evaluation of patients with early-stage endometrial cancer should be performed in large-scale comparative studies using the laparoendoscopic, single-site staging operation to confirm the safety and benefits of the RSSS operation for early-stage endometrial cancer.

12.
Cancer Invest ; 37(1): 8-15, 2019.
Article in English | MEDLINE | ID: mdl-30599784

ABSTRACT

The aim of this study is to determine the rate of clinically significant histopathologic lesions in women identified with atypical glandular cells (AGC). Five-hundered and forty patients with AGC, from a cohort of 1013 with AGC, met inclusion criteria for this study by having a proper histologic evaluation. Clinically significant histologic results were obtained in 170 cases with AGC (31.5%). Of the 170 clinically significant cases, 86 of 540 (15.9%) were diagnosed with malignant lesions. The findings of clinically significant lesions in more than 30% of patients support the recommendation that women identified with AGC require extensive histologic examination.


Subject(s)
Carcinoma, Squamous Cell/diagnosis , Cervix Uteri/pathology , Uterine Cervical Dysplasia/diagnosis , Adult , Aged , Aged, 80 and over , Carcinoma, Squamous Cell/pathology , Early Detection of Cancer , Female , Humans , Middle Aged , Papanicolaou Test , Retrospective Studies , Vaginal Smears , Young Adult , Uterine Cervical Dysplasia/pathology
13.
BMC Palliat Care ; 17(1): 99, 2018 Aug 07.
Article in English | MEDLINE | ID: mdl-30086748

ABSTRACT

BACKGROUND: Palliative chemotherapy should be used with caution when attempting to alleviate symptoms in patients with end-stage cancer. However, palliative chemotherapy continues to be utilized in cancer patients during their last stages of life. In this study, we analyzed the pattern of chemotherapy administered during the last 6 months of life in patients with end-stage gynecologic cancer who were treated with active palliative chemotherapy for the past 10 years. METHOD: We retrospectively analyzed the data for patients with gynecologic cancer who died after undergoing active palliative chemotherapy without receiving hospice management at Asan Medical Center from 2006 to 2015. Patients were divided into two groups: those who died between 2006 and 2010, and those who died between 2011 and 2015. Based on the electronic medical records, the demographic and baseline characteristics of the patients, hospital admission during the last 6 months, invasive procedures, palliative chemotherapy patterns, and the time of the last chemotherapy session were confirmed. RESULTS: A total of 193 patients with gynecologic cancer were eligible for this study. 92 patients died during 2006 to 2010, and 101 patients died during 2011 to 2015. The mean frequency of admission during the last 6 months was 5.12 for those who died in 2006-2010 and 6.06 for those who died during 2011-2015 (p = 0.003); similarly, the mean frequency of palliative chemotherapy during the last 6 months was 3.84 (2006-2010) vs. 4.93 times (2011-2015; p < 0.001). The proportion of patients undergoing invasive procedures during the last 3 months was 41.3% (2005-2010) vs. 56.4% (2011-2015; p = 0.044). CONCLUSIONS: The frequency of palliative chemotherapy and the rate of invasive procedures have increased in patients with end-stage gynecologic cancer who were treated aggressively without hospice management over 2011-2015 when compared to 2006-2010, along with an increase in the mean frequency of admission during the last 6 months at our institution. Gynecologic oncologists need to evaluate whether active palliative chemotherapy is beneficial to patients at the end-of-life stage, and if not helpful, should communicate with the patients and caregivers about when the palliative chemotherapy should be discontinued.


Subject(s)
Genital Neoplasms, Female/therapy , Terminal Care/trends , Adult , Aged , Aged, 80 and over , Drug Therapy/methods , Drug Therapy/trends , Female , Humans , Male , Middle Aged , Quality of Life/psychology , Republic of Korea , Retrospective Studies , Terminal Care/methods
14.
Gynecol Oncol ; 151(1): 39-45, 2018 10.
Article in English | MEDLINE | ID: mdl-30146110

ABSTRACT

OBJECTIVE: To evaluate the efficacy and safety of involved-field radiation therapy (IFRT) in patients with locoregionally confined recurrent or persistent epithelial ovarian cancer. METHODS: This study included patients with recurrent epithelial ovarian cancer eligible for IFRT either during diagnosis of the recurrence or after salvage therapies. IFRT was performed at a dose of ≥45 Gy for all tumors with 10-15-mm margins as seen on standard imaging. The primary endpoint was progression-free survival (PFS); the secondary endpoints were safety, response rate, local control, and overall survival (OS). RESULTS: Thirty patients with a mean number of 5.7 metastatic lesions each were enrolled between 2014 and 2016. Seventeen were treated with 3-D conformal radiation therapy (RT) and 13 with intensity-modulated RT. IFRT was well tolerated in all patients, and acute toxicity ≥ grade 2 was not observed. One case of grade 3 abdominal pain was reported 10 months post-RT. The overall and complete response rates were 85.7% and 50%, respectively. After a median follow-up of 28 (range, 17-42) months, the median PFS was 7 months. The 2-year PFS rate was 39.3%. Six of the 16 patients who developed outfield disease progression after IFRT were successfully treated with repeat IFRT as salvage treatment. The 3-year local control and OS rates were 84.4% and 55.8%, respectively. CONCLUSIONS: Although the primary endpoint was not met, IFRT might be safe and effective for in-field tumor control in patients with persistent epithelial ovarian cancer with a limited number of metastatic foci. We plan to conduct a larger scale multi-center phase II prospective study.


Subject(s)
Neoplasm Recurrence, Local/radiotherapy , Neoplasms, Glandular and Epithelial/radiotherapy , Ovarian Neoplasms/radiotherapy , Radiotherapy, Conformal/methods , Salvage Therapy/methods , Adult , Aged , Carcinoma, Ovarian Epithelial , Disease Progression , Disease-Free Survival , Female , Follow-Up Studies , Humans , Middle Aged , Neoplasm Recurrence, Local/mortality , Neoplasm Recurrence, Local/pathology , Neoplasms, Glandular and Epithelial/mortality , Neoplasms, Glandular and Epithelial/pathology , Ovarian Neoplasms/mortality , Ovarian Neoplasms/pathology , Prospective Studies , Radiation Injuries/epidemiology , Radiation Injuries/etiology , Radiotherapy Dosage , Radiotherapy, Adjuvant/adverse effects , Radiotherapy, Adjuvant/methods , Radiotherapy, Conformal/adverse effects , Retreatment/statistics & numerical data , Salvage Therapy/adverse effects , Survival Rate , Treatment Outcome
15.
Obstet Gynecol Sci ; 60(6): 549-557, 2017 Nov.
Article in English | MEDLINE | ID: mdl-29184863

ABSTRACT

OBJECTIVE: The aim of our study is to compare the overall survival (OS), progression-free survival (PFS), and treatment-related morbidities between primary concurrent chemoradiation therapy (CCRT) vs. radical hysterectomy (RH) with or without tailored adjuvant therapy in patients with stages IB2 and IIA cervical cancer. METHODS: This was a retrospective study of 113 patients with IB2 or IIA cervical cancer treated with either primary CCRT (n=49) or RH (n=64) with or without tailored adjuvant therapy between 2002 and 2011 at Keimyung University Dongsan Medical Center. Patients in RH group was divided into those undergoing surgery alone (n=26) and those undergoing surgery with adjuvant therapy (n=38). RESULTS: The median follow up period was 66 months. The 5-year OS by treatment modality was 88.7% for the 64 patients in the RH group and 72.8% for 49 patients in the CCRT group (P=0.044). The 5-year PFS was 82.3% and 65.6% after RH group and CCRT group (P=0.048), respectively. Grade 3-4 complication was less frequent after RH alone (7.7%) than RH with adjuvant therapy (34.2%) or CCRT group (28.6%) (P=0.047). CONCLUSION: The RH group seems to be superior to the CCRT group in oncologic outcomes. However, considering the selection bias including tumor size, lymph node meta, and parametrial invasion in pretreatment magnetic resonance imaging, both treatment modalities are reasonable and feasible in cervical cancer IB2 and IIA. It is important to choose the appropriate treatment modality considering the age and general condition of the patient. Randomized controlled study is needed to confirm the result of our study and determine the optimal treatment.

16.
Clin Exp Reprod Med ; 38(1): 42-6, 2011 Mar.
Article in English | MEDLINE | ID: mdl-22384417

ABSTRACT

OBJECTIVE: This study was aimed to investigate endometrial histology and to find predictable clinical factors for endometrial disease (hyperplasia or cancer) in women with polycystic ovary syndrome (PCOS). METHODS: We investigated the endometrial histology and analyzed the relationship between endometrial histology and clinical parameters, such as LH, FSH, estradiol, testosterone, fasting and 2 hours postprandial glucose and insulin, insulin resistance, body mass index, endometrial thickness, menstrual status from 117 women with PCOS. Statistical analysis was performed with chi square and t-test, p-value<0.05 was considered as statistically significant. And receiver operating characteristic curve was used to find predictable clinical factors for endometrial disease and to decide the cuff off values. RESULTS: In 117 women with PCOS, endometrial histologic profiles are as follows: proliferative phase in 90 women (76.9%), endometrial hyperplasia in 25 women (21.4%), and endometrial cancer in 2 women (1.7%). Of 25 women with endometrial hyperplasia, simple hyperplasia without atypia, complex hyperplasia without atypia and complex hyperplasia with atypia were diagnosed in 15 (12.8%), 6 (5.1%), 4 (3.4%) women, respectively. Age and endometrial thickness were significantly related with endometrial disease, p=0.013 and p=0.001, respectively. At the cut off level of 25.5 years in age, sensitivity and specificity predicting for endometrial disease were 70.4% and 55.6%, respectively (p=0.023). At the cut off level of 8.5 mm in endometrial thickness, sensitivity and specificity were 77.8% and 56.7%, respectively (p=0.000). CONCLUSION: In women with PCOS, the incidence of endometrial hyperplasia and cancer were 21.4% and 1.7%. The age and endometrial thickness may be used as clinical determining factors for endometrial biopsy.

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