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STUDY OBJECTIVE: The main objective is to evaluate the feasibility of laparoscopic fertility-sparing surgery in women with growing teratoma syndrome. DESIGN: Retrospective cohort study. SETTING: Chinese tertiary university hospital. PATIENTS: Patients with growing teratoma syndrome who underwent fertility-sparing surgery between January 2015 and August 2023. INTERVENTIONS: Baseline characteristics and surgical outcomes were evaluated, including clinical information, surgical procedures, operative time, intraoperative blood loss, complications, length of hospital stay, and follow-up information. MEASUREMENT AND MAIN RESULTS: Twenty-six patients with ovarian growing teratoma syndrome underwent fertility-sparing surgery: 12 had laparoscopic surgery and 14 underwent laparotomic surgery. In the laparoscopic group, the median age of the patients during initial management of immature teratoma or mixed malignant ovarian germ cell tumor was 14.0 years (interquartile range, 13.0-24.5 years). Eleven patients were nulliparous. The primary ovarian tumor was pure immature teratoma in 10 patients and mixed ovarian germ cell tumor in 2 patients. Complete laparoscopic tumor resection was achieved in 11 patients. Patients in the laparoscopic group had shorter median operative time (76.5 vs 180.0 minutes, p = .001), lower estimated blood loss (20.0 vs 400.0 mL, p <.001), and decreased postoperative hospital stay (2.0 vs 7.0 days, p <.001) compared with laparotomic surgery. There was no conversion to laparotomy and no perioperative complications. Histologic examination confirmed mature teratoma in all cases. During a median follow-up of 21.9 months (interquartile range, 7.6-44.9 months), 11 patients were alive without disease and 1 was alive with disease. One pregnancy was achieved postoperatively. CONCLUSION: Laparoscopic fertility-sparing surgery may represent a feasible option in well-selected patients with ovarian growing teratoma syndrome. Surgery should be performed in gynecologic oncology centers by experienced staff trained in endoscopic procedures. More research and long-time follow-up are needed to determine the oncologic outcomes and safety of laparoscopic surgery in this population.

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Objective: To share our case and offer guidance to practitioners on the management of incidental uterine surgery in early pregnancy. Although elective uterine surgery should be avoided during pregnancy, there is always a chance of undetected pregnancy at the time of surgery, even after all precautions have been taken. There is currently minimal literature on the management and outcomes of uterine surgery during pregnancy. Design: Case report. Setting: University Hospital. Patient: A 42-year-old G1P1 female with symptomatic fibroids desiring fertility-sparing surgery was retroactively found to be 4 weeks pregnant at the time of surgery, even after a negative pregnancy test and low suspicion for pregnancy under Centers for Disease Control and Prevention guidelines. Intervention: Robotic-assisted laparoscopic myomectomy performed with a false-negative urine pregnancy test at the time of surgery. Main Outcome Measures: Guidance for surveillance and management options during continued pregnancy after robotic uterine surgery and cavity disruption by a uterine manipulator performed at 4 weeks gestation that went undetected at the time of surgery. Results: The patient was able to undergo an uncomplicated delivery by cesarean section at 38 weeks and delivered a healthy infant. Conclusion: Using a multidisciplinary approach, we describe guidelines for antepartum surveillance uterine surgery during an undetected pregnancy, which resulted in the delivery of a term healthy infant.

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BACKGROUND: Adenocarcinoma in situ (AIS) of the cervix can progress to invasive adenocarcinoma. While hysterectomy is standard, conservative management may be considered for women desiring future pregnancies. This study aimed to determine the prevalence of residual disease in hysterectomy specimens following excisional therapy with clear margins for AIS. METHODS: A retrospective FRANCOGYN cohort study was conducted on patients who underwent a hysterectomy after conization with clear margins for AIS between 2008 and 2021. The primary goal was to assess the prevalence of residual disease in the hysterectomy specimens. Secondary objectives included identifying preoperative predictors of residual disease and comparing recurrence rates between patients with and without residual disease. RESULTS: Of 53 hysterectomies performed after conization with negative margins for AIS, 20.8% (11/53) showed residual disease in the final histology. None of the patients had invasive cancer. In the residual disease group, 18% (2/11) had persistent CIN 3, and 82% (9/11) had persistent AIS. These patients tended to have higher BMI (27.5 kg/m² vs. 23.6 kg/m², p=0.04) and shorter endocervical margins (2mm vs. 5mm, p=0.01). No recurrences were observed during follow-up. CONCLUSION: Despite clear margins on the initial conization for AIS, 20% of patients had residual disease in their hysterectomy samples, though no invasive cancer was found. A hysterectomy should be considered after completing childbearing, even if initial margins are clear.

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OBJECTIVE: This study aimed to investigate health-related quality of life (HRQoL), sexual function, psychological-health, reproductive concerns, and fertility outcomes of women of reproductive age undergoing Fertility-Sparing Surgery (FSS) for treatment of ovarian cancer (OC) or borderline ovarian tumor (BOT), over a 2-year period. METHODS: Prospective longitudinal multicentre study including women 18-40 years undergoing FSS between 2016 and 2018 in Sweden. Clinical data at diagnosis, histopathological findings and 2-year follow-up regarding oncological and reproductive outcomes were collected. Participants completed the EORTC QLQ-C30 and OV-28, FSFI, HADS and study-specific items at time of diagnosis and at one- and two-years following FSS. Data were analysed using a model for repeated measures to investigate changes over time. RESULTS: Of 68 eligible women, 49 were included following exclusions due to benign pathology or subsequent radical surgery. During a mean follow-up of 20.5 months, two women experienced a recurrence and 82% reported regular menstruations. The majority (94%) had a strong desire to become biological mothers, which remained or increased over time. The conception-rate was 76%. HRQoL, psychological-health and sexual function improved over time and the proportion of women with sexual dysfunction decreased. At one-year follow-up 50% of nulliparous women had scores indicating sexual dysfunction compared to 0% of the women who had given birth either before or after surgery (p = 0.008). CONCLUSION: HRQoL, psychological-health and sexual function improved during two-year follow-up after FSS in young women presenting with OC or BOT. Women who had given birth prior to or after FSS reported improved sexual function compared to nulliparous women.

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BACKGROUND: Sclerosing stromal tumors (SST) are rare ovarian neoplasms that often appear as solid unilateral tumors of the ovary with no specific clinical or radiological presentation. The definitive treatment is surgical removal. CASE PRESENTATION: Our article presents four cases of female patients with sclerosing stromal ovarian tumor with clinical characteristics mimicking malignant ovarian lesions. Interestingly, two of our cases had elevated levels of inhibin B. All patients were treated with surgery (oophorectomy) and had no disease recurrence. CONCLUSION: Tumors' macroscopic features are usually non-specific and often suggestive of possible malignancy, therefore diagnosis is always based on histopathological report.

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BACKGROUND: The oncological outcomes of fertility-sparing surgery (FSS) compared to radical surgery (RS) in patients with stage I epithelial ovarian cancer (EOC) remain a subject of debate. We evaluated the risk ratios (RRs) for outcomes in patients with stage I EOC who underwent FSS versus RS. METHODS: We conducted a systematic search of PubMed, Web of Science, and Embase for articles published up to November 29, 2023. Studies that did not involve surgical procedures or included pregnant patients were excluded. We calculated the RRs for disease-free survival, overall survival, and recurrence rate. The quality of the included studies was assessed using the Cochrane Risk of Bias in Nonrandomized Studies of Interventions (ROBINS-I) tool. The meta-analysis was registered on PROSPERO (CRD42024546460). RESULTS: From the 5,529 potentially relevant articles, we identified 83 articles for initial screening and included 12 articles in the final meta-analysis, encompassing 2,906 patients with epithelial ovarian cancer. There were no significant differences between the two groups in disease-free survival (RR [95% confidence interval {CI}], 0.90 [0.51, 1.58]; P = 0.71), overall survival (RR [95% CI], 0.74 [0.53, 1.03]; P = 0.07), and recurrence rate (RR [95% CI], 1.10 [0.69, 1.76]; P = 0.68). In sensitivity analyses, the significant difference was observed only for overall survival (before exclusion: RR [95% CI], 0.74 [0.53-1.03], P = 0.07; after exclusion: RR [95% CI], 0.70 [0.50-0.99]; P = 0.04). CONCLUSIONS: This is the first and only individual patient data meta-analysis comparing disease-free survival, overall survival, and recurrence rate of patients with early-stage epithelial ovarian cancer undergoing FSS and RS. FSS was associated with similar disease-free survival and risk of recurrence as RS. We hypothesized that the decreased overall survival in the FSS group could not be attributed to distant metastases from epithelial ovarian cancer.

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Key Clinical Message: Fertility-sparing surgery and appropriate adjuvant chemotherapy for advanced malignant ovarian germ cell tumors have excellent survival results and promising reproductive and obstetric outcomes. Abstract: This case report aims to demonstrate the potential feasibility and success of fertility-sparing surgery (FSS) coupled with adjuvant chemotherapy in treating advanced malignant ovarian germ cell tumor (MOGCT), focusing on pure dysgerminoma, fertility, and achieving spontaneous pregnancy. The patient was a 23-year-old female who initially presented with complaints of abdominal distension and a palpable mass and was subsequently diagnosed with advanced MOGCT. The patient provided a complete clinical and radiological response to FSS with complete surgical staging and cisplatin-based chemotherapy (bleomycin, etoposide, and cisplatin). Despite being diagnosed with advanced MOGCT and treated with FSS and adjuvant chemotherapy, she later experienced spontaneous pregnancy, giving birth to a healthy child. This case study demonstrated the potential for successful fertility preservation and pregnancy in advanced-stage MOGCT patients treated with personalized treatment approaches. Nevertheless, a broader investigation is needed to understand the relevant complex dynamics and to ascertain whether FSS with adjuvant chemotherapy could be a reliable approach in treating advanced MOGCT.

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OBJECTIVE: To describe the characteristics of children and adolescents with borderline ovarian tumors (BOTs) and evaluate the efficacy and safety of fertility-sparing surgery (FSS) in these patients. METHODS: Patients with BOTs younger than 20 years who underwent FSS were included in this study. RESULTS: A total of 34 patients were included, with a median patient age of 17 (range, 3-19) years; 97.1% (33/34) of cases occurred after menarche. Of the patients, 82.4% had mucinous borderline tumors (MBOTs), 14.7% had serous borderline tumors (SBOTs), and 2.9% had seromucinous borderline tumor (SMBOT). The median tumor size was 20.4 (range, 8-40)cm. All patients were at International Federation of Gynecology and Obstetrics stage I and all underwent FSS: cystectomy (unilateral ovarian cystectomy, UC, 14/34, 41.2% and bilateral ovarian cystectomy, BC, 1/34, 2.9%), unilateral salpingo-oophorectomy (USO; 18/34; 52.9%), or USO + contralateral ovarian cystectomy (1/34; 2.9%). The median follow-up time was 65 (range, 10-148) months. Recurrence was experienced by 10 of the 34 patients (29.4%). One patient with SBOT experienced progression to low-grade serous carcinoma after the third relapse. Two patients had a total of four pregnancies, resulting in three live births. The recurrence rate of UC was significantly higher in MBOTs than in USO (p = 0.005). The 5-year disease-free survival rate was 67.1%, and the 5-year overall survival rate was 100%. CONCLUSIONS: Fertility-sparing surgery is feasible and safe for children and adolescents with BOTs. For patients with MBOTs, USO is recommended to lower the risk of recurrence.

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In this editorial we comment on the article by Gu et al. We focus and debate the necessity of fertility sparing surgery in young women's with gynecologic cancers, specifically on those patients with the desire to conceive. This type of individualized treatment options is often very difficult, due to the risk of disease evolution and multiple disparities in fertility preservation services among women in different countries and societies. For this reason national policy interventions are mandatory in order to ensure equitable access this procedures, in women with cancer.

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Los tumores ováricos borderline (TOBL) son definidos como «tumores de bajo potencial maligno». Se trata de neoplasias epiteliales que debutan principalmente en mujeres jóvenes, siendo habitualmente diagnosticados en estadios iniciales de la enfermedad. La clave principal de su tratamiento es la cirugía, viéndose así comprometida la fertilidad de la paciente que no ha cumplido su deseo genésico. En general, la elección de la cirugía para los TOBL debe considerar las características del tumor, los deseos de fertilidad de la paciente y la extensión de la enfermedad. Las decisiones tomadas al respecto deben ser individualizadas y asesoradas por un equipo multidisciplinar. La preservación de la fertilidad (PF) juega un papel importante en el manejo de estas pacientes, existiendo distintas estrategias para mejorar y mantener su calidad de vida. El asesoramiento reproductivo debería ser una parte integral del manejo clínico, debiendo considerarse cuidadosamente los riesgos y beneficios. Dada su baja incidencia existe poca literatura al respecto, necesitándose estudios prospectivos bien diseñados para abordar los problemas específicos de fertilidad tanto en el diagnóstico inicial como en las recurrencias de los pacientes con TOBL.(AU)

Borderline ovarian tumors (BOTs) are defined as “tumors of low malignant potential”. These are epithelial neoplasms that debut mainly in young women, and are usually diagnosed in the initial stages of the disease. The main key to its treatment is surgery, thus compromising the fertility of the patient who has not fulfilled her reproductive desire. In general, the choice of surgery for BOTs should consider the characteristics of the tumor, the patient's fertility desires, and the extent of the disease. The decisions made in this regard must be individualized and advised by a multidisciplinary team. Fertility preservation (FP) plays an important role in the management of these patients, and there are different strategies to improve and maintain their quality of life. Reproductive counseling should be an integral part of clinical management, with risks and benefits carefully considered. Given its low incidence, there is little literature on the matter, requiring well-designed prospective studies to address specific fertility problems both in the initial diagnosis and in recurrences of patients with BOTs.(AU)

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BACKGROUND: Fertility-sparing surgery (FSS) is an alternative choice of young patients who have not completed their family planning and still have fertility needs. The aims of this study were to compare the outcomes of early-stage epithelial ovarian cancer (EOC) patients undergoing FSS and radical comprehensive staging surgery (RCS), and the suitability of FSS. METHODS: A total of 1297 patients aged between 20 and 44 years with newly diagnosed early-stage EOC were recruited from the Taiwan Cancer Registry database between 2009 and 2017. Site-specific surgery codes were used to distinguish patients in FSS group or RCS group. Cancer-specific survival (CSS) was evaluated using Kaplan-Meier method with log-rank test and Cox regression model. RESULTS: There were 401 and 896 patients in FSS and RCS group. Patients in FSS group were with younger age and mostly had Stage I disease. In contrast, patients in RCS group were older. There were more Stage II, high-grade (Grade 3) disease, and adjuvant chemotherapy in RCS group. Stage and tumor grade were two independent factors correlating with CSS and the type of surgery showed no effect on CSS (HR: 1.09, 95% CI: 0.66-1.77, p = 0.73) in multivariable analysis. In multivariable analysis, the clear cell carcinoma group who underwent FSS demonstrated better CSS compared to those in the RCS group (HR: 0.28, 95% CI: 0.06-0.82, p = 0.04). A total of 17 women who underwent FSS developed second malignancies of the uterine corpus or contralateral ovary. CONCLUSION: FSS can be a safe alternative procedure in selected young patients of Stage I EOC who have fertility desire. Endometrial biopsy before or during FSS and regular surveillance to detect recurrence are mandatory for ovarian cancer patients undergoing FSS.

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•Cervical cancer plays a large role in morbidity and mortality for gynecologic cancer.•Most cases are involved with high-risk HPV, rare cases of low-risk HPV associated cancer exists.•Low risk HPV associated cervical cancers have increased difficulty in diagnosis.•No distinction exists in treatment between low and high risk HPV associated cervical cancer.

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OBJECTIVE: Fertility-sparing surgery (FSS) aims to achieve oncological outcomes that are non-inferior to radical treatment while preserving fertility and optimizing reproductive results. This study assesses in vitro fertilization (IVF) outcomes in early-stage cervical cancer survivors following FSS, comparing radical and non-radical approaches. METHODS: This retrospective analysis used data from Hungary's National Health Insurance Fund (2004-2022) on patients who underwent IVF treatment following FSS for early-stage cervical cancer at ten Hungarian fertility clinics. Patients were classified into radical and non-radical surgical groups, with the uterine arteries being spared in the non-radical procedures. RStudio (R software version: 4.2.2) was used for statistical analysis. Student's t-test was used to compare group means, and Fisher's exact test was applied to assess independence and distributions between categorical variables, and to estimate odds. RESULTS: The study analyzed data from 122 IVF treatment cycles involving 36 patients. The non-radical group had a significantly higher live birth rate (83%, 5/6 compared to the radical group (17%, 5/30). Additionally, the non-radical group had a significantly higher implantation rate and cumulative live birth rate per oocyte retrieval (37%, 7/19 and 55%, 6/11 respectively) compared to the radical group (8%, 12/148 and 6%, 5/80 respectively). CONCLUSION: This is the largest study to evaluate IVF outcomes in young cervical cancer survivors who have undergone FSS. The findings suggest that less radical procedures are associated with significantly better IVF outcomes. These results emphasize the importance of considering oncological safety and reproductive outcomes together when choosing FSS for early-stage cervical cancer patients. It also highlights the reproductive benefits of performing less radical surgery.

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OBJECTIVE: Borderline ovarian tumors (BOT) are characterized by atypical epithelial proliferation without stromal invasion and majority are diagnosed in women of reproductive age group desirous of fertility preservation. METHODS: A retrospective review of medical records of patients diagnosed with BOT and on regular follow up at the All India Institute of Medical Sciences New Delhi, during a nine-year study period from March 2014 to March 2023 was performed. Surgical treatment was classified as radical or fertility sparing surgery (FSS). Surgical staging was defined as complete, partial or un-staged. RESULTS: Median age of 91 women was 34 years. Follow up period ranged from 4 to 222 months (median 77 months). Among 68 premenopausal women, 31 (46 %) underwent radical surgery and FSS in 37 (54 %) cases. Median time to conception in 29 women with future fertility wishes was 13 months (range, 4 to38 m). Seven of 29 cases (29 %) required ovulation induction. The pregnancy rate was 82.7 % and live birth rate was 80 %. Eight cases (8.7 %) had a recurrence (7- un-staged, 1- partially staged) and median time to recur was 36 months. There was no significant difference in recurrence between cystectomy/oophorectomy. Ovary was the site of recurrence in all surgically salvaged cases except peritoneal cavity in 1 case with mortality. Relapse free survival at 5 and 10 years in FSS and radical surgery group were similar. CONCLUSION: FSS is a safe procedure and should be considered in young patients desirous of future fertility along with a comprehensive peritoneal staging. Reproductive outcomes are excellent.

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OBJECTIVE: Ovarian carcinoma (OvCa) is more common in the elderly, but also affects the adolescent and young adult (AYA) generation, which refers to those aged 15-39 years. Although the characteristics of OvCa may differ between AYAs and non-AYAs, limited information is currently available on differences in prognostic factors. Therefore, we herein investigated prognostic factors for and the prognosis of OvCa in AYAs. We also examined the prognostic impact of fertility-sparing surgery in a subgroup analysis. METHODS: We retrospectively collected data on 4897 patients with OvCa from the databases of multiple institutions and ultimately included 1161 patients with epithelial ovarian cancer (EOC). We performed a survival analysis to compare AYAs and non-AYAs with backgrounds that conformed to those of AYAs using the propensity score (PS) matching method. A Cox regression analysis was also conducted to evaluate each predictor of recurrence-free survival (RFS) and overall survival (OS) in the original population. As a subgroup analysis, a multivariate analysis stratified by the AYA and non-AYA generations was performed. RESULTS: In total, 119 AYA patients were included in this study. After PS adjustments, no significant differences were observed in RFS or OS between AYAs and non-AYAs. Prognostic factors differed between AYAs and non-AYAs, particularly in histology and cytology. A multivariate analysis stratified by the AYA and non-AYA generations described that uterine-preserving surgery (UPS) did not have a significant impact on the prognosis of AYAs or non-AYAs. In cases with recurrence, no significant differences were observed in RFS and recurrent sites in the two groups. CONCLUSION: Characteristic prognostic factors for EOC in AYAs were identified. The present results indicate the limited prognostic impact of UPS for EOC in AYAs.

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Background: Epithelioid trophoblastic tumor (ETT) is the rarest gestational trophoblastic tumor, with poor response to chemotherapy. Hysterectomy, as the cornerstone therapy for early ETT, is particularly challenging in reproductive-age women who often have a strong desire for fertility preservation. The management of extra-uterine ETT could be even more complicated and inconsistent. Here we reported a case of isolated ETT lesions in lungs managed with thoracic surgery without hysterectomy. Case presentation: A 32-year-old woman presented with amenorrhea for 2 months. Her serum ß- human chorionic gonadotropin (hCG) levels fluctuated between 52 and 75 mIU/mL. The patient underwent removal of intrauterine device and suction and curettage, but only proliferative endometrium was found. Methotrexate was given for a provisional diagnosis of ectopic pregnancy of unknown location, while ß-hCG had no significant decline. She complained of mild chest pain during the past half year, and the chest computed tomography (CT) result showed two mixed ground-glass nodules of 24 mm × 14.2 mm in right upper lobe and 10 mm × 8 mm in the right lower lobe and a thin-walled cavity in the posterior segment of the left lower lobe. Right upper wedge resection and right lower segmentectomy were performed 3 months later. The result of the pathological examination of pulmonary mass indicated an epithelioid trophoblastic tumor. She was diagnosed with ETT at stage III (with right lung metastasis) according to FIGO 2000. Her menstrual cycle recovered within 1 month after the first thoracic surgery. However, ß-hCG was elevated again to 9 mIU/mL, and the positron emission tomography/computed tomography (PET/CT) scans revealed the consolidation of the nodule in the left lower lobe which enlarged to about 1.0 cm × 1.7 cm. Her second pulmonary surgery without hysterectomy was conducted. Followed for 12 months for postoperative monitoring, the patient was found to be disease-free with negative results of serial serum ß-hCG and chest CT. Conclusion: Our case highlights the efficacy of fertility-sparing surgery for isolated ETT in lungs. The surgical management of pulmonary isolated ETT could be individualized under long-term supervision. Sporadic reports on the favorable outcome of extra-uterine ETT with fertility-sparing surgery were described in the last decades. The safety of this surgical strategy might be warranted only if enough reliable data is accumulated.

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Gliomatosis peritonei (GP) is a rare condition of mature glial tissue within the peritoneum often associated with immature teratomas. This was a case of rapid progression of immature teratoma with splenic lesions and associated GP. The patient was a 21-year-old female who presented with abdominal pain and CT imaging showing suspected malignant teratoma. The patient underwent exploratory laparotomy with fertility-sparing debulking surgery and was diagnosed with stage IIIC grade 3 immature teratoma. She then received adjuvant chemotherapy with bleomycin, etoposide, and cisplatin. Surveillance imaging demonstrated a non-avid splenic lesion. The tumor markers remained normal. She underwent robotic splenectomy and partial peritonectomy with intra-operative findings revealing numerous peritoneal nodules. Follow-up surveillance imaging showed no further lesions. The final histopathology examination demonstrated mature and mesenchymal neural tissue consistent with residual teratoma and no immature elements. The specimens were largely composed of nodules of mature glial tissue and focal areas of mature neuronal tissue. Immunohistochemistry demonstrated glial fibrillary acidic protein (GFAP) and S100 expression, confirming neural origin tissue. Octamer-binding transcription factor 4 (OCT-4) immunostain was negative which confirmed the absence of immature neural tissue. We report a rare case of rapid progression of immature teratoma with splenic metastasis and peritoneal nodules found ultimately to be mature teratoma and associated GP. Recognition of rapidly growing teratoma with new lesions as potential GP is imperative to prevent misdiagnosis as recurrence or progression of disease. This case was treated with secondary debulking surgery which should be a consideration of management if surgically feasible.

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Objective: To describe a case of utero-ovarian transposition (UOT) before pelvic radiation in a patient with rectal cancer and provide a systematic literature review on all reported cases of UOT. Methods: We performed a prospective collection and revision of clinical, intraoperative, and postoperative data from a patient who underwent UOT. In addition, a systematic review of the literature available to date on all cases of UOT was realized, and 14 patients from 10 articles were included. Results: We reported the case of a 28-year-old nulligravida patient who was diagnosed with a low-grade rectal adenocarcinoma and underwent neoadjuvant chemoradiotherapy, followed by transanal total mesorectal excision (TaTME). Before starting neoadjuvant oncological therapies, the patient underwent laparoscopic UOT. The intervention was performed without complications, and the patient received neoadjuvant oncological treatments as planned. TaTME and uterus repositioning were completed six weeks after the end of radiotherapy. No complications were observed during the first 9 postoperative months. Adequate utero-ovarian perfusion was assessed by Doppler ultrasound, cervicovaginal anastomosis appeared to have healed correctly, and the patient experienced menstrual bleeding. Data from the literature review of all reported cases of UOT were presented and discussed. Conclusions: UOT represents a valuable option to preserve fertility in patients requiring pelvic radiotherapy. This study provides additional evidence on the feasibility and safety of performing UOT.

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The objective is to study the clinico-demographic profile, treatment patterns and oncological outcomes in borderline mucinous tumours of the ovary. Retrospective cohort analysis was carried out between January 2017 and December 2019 for patients with a diagnosis of borderline mucinous tumours of the ovary who were treated at our centre. Kaplan-Meier method was used for the estimation of the probability of DFS and OS. Univariate and multivariate analyses based on the Cox proportional hazard model were performed to identify factors associated with DFS and OS. A p-value ≤ 0.05 in a two-tailed test was considered statistically significant. The study population included 75 patients and the median follow-up time for the entire cohort was 24 months. The 5-year DFS for the entire cohort was 79.6% and OS was 90.5%, whereas for stage I disease, 5-year OS was 92.6% as opposed to 60% in the advanced stage. On univariate analysis, only the stage of the disease had a significant association with DFS and OS. Fertility-preserving surgeries had no impact on OS or DFS, and hence, it is suggested that fertility-sparing surgeries may be considered a viable option in young patients with mucinous ovarian tumours. Borderline mucinous tumours of the ovary have excellent survival outcomes and fertility-sparing surgeries should be done whenever feasible.