Granulosa cell tumor patients presenting with acute abdomen: a case series.

Objective: To highlight the unique clinical presentation of acute abdomen in granulosa cell tumor patients.

Methods: In a multicenter cohort study of adult-type granulosa cell tumors, women presenting with an acute abdomen at diagnosis were identified (Brink, 2025). After informed consent, clinical data were retrieved from patient records and collected in a Castor EDC database.

The Prognostic Value of FOXL2 Mutant Circulating Tumor DNA in Adult Granulosa Cell Tumor Patients.

The purpose of the study is to determine whether circulating tumor DNA can be used as a prognostic biomarker and marker for monitoring treatment response in patients with an adult-type granulosa cell tumor (aGCT). Plasma samples of patients included in the multicenter GRANULOSA study were collected before and after surgery for primary or recurrent aGCT, during follow-up, and during systemic treatment. The presence of ctDNA containing the mutation was analyzed in 284 samples from 20 primary and 34 recurrent aGCT patients, using digital droplet PCR.

Integrating Real-World Data and Computational Guidelines: Designing a Dashboard for Nationwide Evaluation of Molecular Diagnostics in Oncology.

Molecular diagnostics is essential for personalized treatment in oncology. However, nationwide insight into the use of molecular diagnostics in clinical practice and corresponding outcomes is lacking. This project focuses on the design, development and evaluation of a prototype dashboard that combines data from national registries and computational guidelines to reveal missing insights in molecular diagnostics in the Netherlands.

Pattern of recurrence of the molecular subgroups in stage I high-grade endometrial cancer.

Objective: Patterns of recurrence may impact the possibilities for salvage treatment and prognosis of patients with endometrial carcinoma (EC). We evaluated the recurrence rate and distribution pattern of the molecular EC subgroups in patients with stage I high-grade disease without adjuvant treatment and those staged by lymphadenectomy.

Method: 412 high-grade EC from the Danish Gynecological Cancer Database were molecularly profiled and classified into POLE mutant (POLEmut), mismatch repair deficient (MMRd), p53-abnormal (p53abn) or no specific molecular profile (NSMP) EC.

Cost-effectiveness of a nurse-led sexual rehabilitation intervention for women treated with radiotherapy for gynaecological cancer in a randomized trial.

Purpose: To compare the cost-effectiveness of a nurse-led sexual rehabilitation intervention with standard care in women treated with external beam radiotherapy, with or without brachytherapy, for gynaecological cancers.

Methods: Eligible women were randomly assigned to the intervention (n = 112) or standard care (n = 117). Primary endpoint was sexual functioning at 12-months post-radiotherapy, assessed by the Female Sexual Function Index (FSFI).

Evaluation of the recently established Dutch nationwide Archipelago of Ovarian Cancer Research biobank.

Fundamental and translational research in ovarian cancer aims to enhance understanding of disease mechanisms and improve treatment and survival outcomes. To support this, we established the Dutch multicenter, interdisciplinary Archipelago of Ovarian Cancer Research (AOCR) infrastructure, which includes a nationwide biobank. In this study, we share our experiences in establishing the infrastructure, offer guidance for similar initiatives, and evaluate the AOCR patient cohort.

Efficacy of a nurse-led sexual rehabilitation intervention for women with gynaecological cancers receiving radiotherapy: results of a randomised trial.

Background: The multicentre randomised SPARC trial evaluated the efficacy of a nurse-led sexual rehabilitation intervention on sexual functioning, distress, dilator use, and vaginal symptoms after radiotherapy for gynaecological cancers.

Methods: Eligible women were randomised to the rehabilitation intervention or care-as-usual. Four intervention sessions were scheduled over 12 months, with concurrent validated questionnaires and clinical assessments.

Prediction of recurrence risk in endometrial cancer with multimodal deep learning.

Predicting distant recurrence of endometrial cancer (EC) is crucial for personalized adjuvant treatment. The current gold standard of combined pathological and molecular profiling is costly, hampering implementation. Here we developed HECTOR (histopathology-based endometrial cancer tailored outcome risk), a multimodal deep learning prognostic model using hematoxylin and eosin-stained, whole-slide images and tumor stage as input, on 2,072 patients from eight EC cohorts including the PORTEC-1/-2/-3 randomized trials.

Prognostic value of molecular classification in stage IV endometrial cancer.

Objectives: Multiple studies have proven the prognostic value of molecular classification for stage I-III endometrial cancer patients. However, studies on the relevance of molecular classification for stage IV endometrial cancer patients are lacking. Hypothetically, poor prognostic molecular subtypes are more common in higher stages of endometrial cancer.

Health state utility and health-related quality of life measures in patients with advanced ovarian cancer.

Purpose: Measuring health-related quality of life (HRQoL) in ovarian cancer patients is critical to understand the impact of disease and treatment. Preference-based HRQoL measures, called health state utilities, are used specifically in health economic evaluations. Real-world patient-reported data on HRQoL and health state utilities over the long-term course of ovarian cancer are limited.

Is routine admission to a critical care setting following hyperthermic intraperitoneal chemotherapy for ovarian cancer necessary?

Introduction: Hyperthermic intraperitoneal chemotherapy (HIPEC) is increasingly being used in patients with stage III ovarian cancer undergoing interval cytoreductive surgery (CRS). It is uncertain whether routine postoperative admission to a critical care setting after CRS-HIPEC is necessary. This study aims to estimate the incidence of patients requiring critical care, and to create a prediction model to identify patients who may forego admission to a critical care setting.

Sentinel lymph node procedure in early-stage vulvar cancer: Correlation of lymphoscintigraphy with surgical outcome and groin recurrence.

Introduction: In early-stage vulvar squamous cell carcinoma (VSCC) a sentinel lymph node (SLN) procedure is regarded successful if at least one SLN is removed with minimal residual radioactivity. An inguinofemoral lymphadenectomy is considered if not all SLNs visualized on lymphoscintigraphy can be found, with subsequent increased morbidity. We correlated lymphoscintigraphy findings with surgical outcome and groin recurrence with focus on number of SLNs found.

Incidence of gynaecological cancer during the COVID-19 pandemic: A population-based study in the Netherlands.

Objective: To study the impact of the COVID-19 pandemic and consequent lockdown on the number of diagnoses of gynaecological malignancies in the Netherlands.

Methods: We performed a retrospective cohort study using data from the Netherlands Cancer Registry (NCR) on women of 18 years and older diagnosed with invasive endometrial, ovarian, cervical or vulvar cancer in the period 2017-2021. Analyses were stratified for age, socioeconomical status (SES) and region.

Frailty and treatment decisions in older patients with vulvar cancer: A single-center cohort study.

Introduction: Vulvar cancer is a disease that mainly affects older women. Frailty is an important predictor of outcomes and geriatric assessment can help tailor treatment decisions and improve outcomes. This study aims to assess the prevalence of frailty in older women with vulvar cancer, and how it relates to integrated geriatric care and treatment according to the oncological guidelines.

Low Transforming Growth Factor-β Pathway Activity in Cervical Adenocarcinomas.

Cervical cancer is the fourth most common cancer in women worldwide. Squamous cell carcinoma (SCC) and adenocarcinoma (AC) are the most common histological types, with AC patients having worse prognosis. Over the last two decades, incidence rates of AC have increased, highlighting the importance of further understanding AC tumorigenesis, and the need to investigate new treatment options.

Patient and physician shared decision-making behaviors in oncology: Evidence on adequate measurement properties of the iSHARE questionnaires.

Objectives: We have developed two Dutch questionnaires to assess the shared decision-making (SDM) process in oncology; the iSHAREpatient and iSHAREphysician. In this study, we aimed to determine: scores, construct validity, test-retest agreement (iSHAREpatient), and inter-rater (iSHAREpatient-iSHAREphysician) agreement.

Methods: Physicians from seven Dutch hospitals recruited cancer patients, and completed the iSHAREphysician and SDM-Questionnaire-physician version.

The RAD51-FFPE Test; Calibration of a Functional Homologous Recombination Deficiency Test on Diagnostic Endometrial and Ovarian Tumor Blocks.

PARP inhibitor (PARPi) sensitivity is related to tumor-specific defects in homologous recombination (HR). Therefore, there is great clinical interest in tests that can rapidly and reliably identify HR deficiency (HRD). Functional HRD tests determine the actual HR status by using the (dis)ability to accumulate RAD51 protein at sites of DNA damage as read-out.

Familial Occurrence of Adult Granulosa Cell Tumors: Analysis of Whole-Genome Germline Variants.

Adult granulosa cell tumor (AGCT) is a rare ovarian cancer subtype, with a peak incidence around 50-55 years. Although AGCT can occur in specific syndromes, a genetic predisposition for AGCT has not been identified. The aim of this study is to identify a genetic variant in families with AGCT patients, potentially contributing to tumor evolution.

Near-infrared fluorescence imaging compared to standard sentinel lymph node detection with blue dye in patients with vulvar cancer - a randomized controlled trial.

Objective: The aim of this study was to assess the superiority of ICG-Tc-nanocolloid for the intraoperative visual detection of sentinel lymph nodes (SLNs) in vulvar squamous cell carcinoma (VSCC) patients compared to standard SLN detection using Tc-nanocolloid with blue dye.

Methods: In this multicenter, randomized controlled trial, VSCC patients underwent either the standard SLN procedure or with the hybrid tracer ICG-Tc-nanocolloid. The primary endpoint was the percentage of fluorescent SLNs compared to blue SLNs.

Efficacy and toxicity of chemoradiation with image-guided adaptive brachytherapy for locally advanced cervical cancer.

Objective: To evaluate the efficacy and toxicity of primary chemoradiation with image-guided adaptive brachytherapy for locally advanced cervical cancer and to identify predictors of treatment failure and toxicity.

Methods: Retrospective analysis of 155 stage IB-IVA cervical cancer patients treated from 2008 to 2016 with chemoradiation and image-guided adaptive brachytherapy. Treatment consisted of external beam radiotherapy (45 - 48.

Incidence and groups at risk for unexpected uterine leiomyosarcoma: a Dutch nationwide cohort study.

Objective: To estimate the risk of uterine leiomyosarcoma in patients undergoing gynecological surgery and also to identify groups at risk for unrecognized uterine leiomyosarcoma.

Methods: A national cohort study was performed evaluating all uterine leiomyosarcoma (ULMS) diagnosed in The Netherlands between January 2000 and September 2015. Cases were identified and supplied by the nationwide network and registry of histo- and cytopathology in The Netherlands (PALGA).

Frequent Homologous Recombination Deficiency in High-grade Endometrial Carcinomas.

Purpose: The elevated levels of somatic copy-number alterations (SCNAs) in a subset of high-risk endometrial cancers are suggestive of defects in pathways governing genome integrity. We sought to assess the prevalence of homologous recombination deficiency (HRD) in endometrial cancers and its association with histopathologic and molecular characteristics.

Experimental Design: Fresh tumor tissue was prospectively collected from 36 endometrial cancers, and functional HRD was examined by the ability of replicating tumor cells to accumulate RAD51 protein at DNA double-strand breaks (RAD51 foci) induced by ionizing radiation.

Independent validation of the prognostic significance of invasion patterns in endocervical adenocarcinoma: Pattern A predicts excellent survival.

Objective: Recently, the pattern of invasion in usual-type human papillomavirus-associated endocervical adenocarcinoma (AC) was put forward as a novel variable to select patients with favourable prognosis. Based on destructiveness of stromal invasion, three patterns were proposed: A - no destructive stromal invasion, B - focal destructive stromal invasion, and C - diffuse destructive stromal invasion. We aimed to independently validate the clinical significance of this classification-system in 82 AC patients, and explored associations between invasion pattern and somatic mutations.

Towards spill-free in-bag morcellation: a health failure mode and effects analysis.

Background: To assess potential risks of new surgical procedures and devices before their introduction into daily practice, a prospective risk inventory (PRI) is a required step. This study assesses the applicability of the Health Failure Mode and Effects Analysis (HFMEA) as part of a PRI of new technology in minimally invasive gynecologic surgery.

Methods: A reference case was defined of a patient with presumed benign leiomyoma undergoing a laparoscopic hysterectomy or myomectomy including in-bag power morcellation; however, pathology defined a stage I uterine leiomyosarcoma.