View clinical trials related to Pathology.
Filter by:Prostate cancer (PCa) remains one of the most prevalent malignancies affecting men globally. The disease spectrum of PCa ranges from indolent tumors, which may require minimal to no intervention, to aggressive, potentially lethal forms. The complexity of PCa underscores the critical need for precise diagnostics, as early and accurate detection is key to improving patient outcomes and tailoring appropriate treatment strategies. There have been remarkable advancements in biopsy technology. Significant strides in magnetic resonance imaging (MRI), especially with the establishment of the Prostate Imaging Reporting and Data System (PI-RADS), have substantially improved the accuracy of PCa detection. The combination of MRI with traditional biopsy methods, including MRI-targeted biopsy (MRI-TBx) and systematic biopsy (SBx), also marks a major advancement in the field. Despite advances in PCa detection, the need for improving diagnostics and in-depth assessment of the latest PBx techniques through extensive, longitudinal studies remains critical. Besides, based on the world health organization (WHO) classification, PCa includes a range of pathological forms beyond the commonly known acinar adenocarcinoma. However, the prevalence and demographic distribution of non-adenocarcinoma types, as well as the characteristics of patients with these rarer forms, remain unclear. Leveraging PBx records spanning over 10 years and involving 10,038 cases, this study aims to shed light on temporal trends in PBx positivity, the evolving clinical profiles of PCa patients, and the differences in clinicopathological characteristics of PCa between Western and Asian populations.
Transvaginal Natural Orifice Transluminal Endoscopic Surgery (vNOTES) is a recent innovation in minimally invasive surgery which has already proven its non-inferiority to conventional abdominal laparoscopy (CAL) for hysterectomy in terms of efficiency and safety. However, the investigators note a lack of medical literature and no specific randomized controlled trial (RCT) assessing women's sexual function after vNOTES for benign adnexal surgery. The aim of this RCT is to confirm the non-inferiority of the vNOTES approach for benign adnexal pathology compared to CAL on women's sexual function. Secondary outcomes will evaluate vNOTES's efficiency, morbidity and postoperative complications compared to CAL for benign adnexal surgery. The relationship between adnexal mass morcellation/aspiration and the quality of the histological analysis on surgical specimens will also be evaluated as secondary outcome.
Micro-computed tomography (micro-CT) is a novel biomedical non-destructive, slide-free digital imaging modality, which enables the rapid acquisition of accurate high-resolution, volumetric images of intact surgical tissue specimens. This imaging modality provides microscopic level of detail of intact tissues in three-dimensions without requiring any specimen preparation. Its non-destructive nature and the ongoing enhancement of imaging resolution and contrast renders micro-CT imaging particularly well suited for microanatomic studies in basic research across a wide range of interventional medical disciplines, including oncology. Our proposal concerns a multidisciplinary basic research effort which aims to facilitate the effective identification of different -and maybe challenging to differentiate- lung cancer patterns based on 3D X-ray histology. As an alternative for the use of hematoxylin & eosin (H&E) slides, optimized micro-CT scanning of soft tissues emerges as a promising tool to enable non-invasive 3D X-ray histology of formalin-fixed and paraffin-embedded (FFPE) lung cancer specimens. The objective of our proposal is to offer novel insights into the complex architecture of each lung cancer subtype after imaging FFPE surgical specimens, resected from lung cancer surgeries. The investigators aim to generate 3D datasets of FFPE lung cancer tissues which will be combined with the corresponding conventional 2D histology slides. Our study will be also adequately empowered to identify particular differences in morphometric measurements according to each particular lung cancer growth pattern. Finally, this proposal aims to delineate the different 3D microanatomy and morphology of some patterns that are challenging to interpret and differentiate through traditional 2D histological evaluation, such as papillary and lepidic adenocarcinoma growth patterns. Classification of the histological subtypes based on 2D histology sections can be ambiguous, as shown by suboptimal inter-observer consensus when determining predominant histological subtypes in FFPE lung adenocarcinoma tissue specimens. Hence, micro-CT-based 3D imaging of the lung specimens could aid classification of histological subtypes by providing more comprehensive sampling of the entire tissue block and yielding detail relevant for subtype classification that might not be visible in 2D sections alone.
To compare the effect of vaginal brachytherapy as adjuvant treatment after operation when compared to pelvic external beam radiotherapy in patients with early endometrial cancer based on moderate risk molecules classification.
Phaeochromocytomas and paragangliomas (PPGLs) are tumours of the adrenal medulla and extra-adrenal sympathetic nervous system, some which can become metastatic. It is a very rare disease and the tumours are often detected late. Approximately 50 % of the tumours are caused by germline genetic variants screening programmes are recommended for patients and their family members; however, they are not yet well-targeted with respect to individual prognosis. In this study the investigatorscaim to characterize the genotype-phenotype associations in all Danish patients (n=400) diagnosed with PPGLs who have been followed in tertiary centres using medical records and national registries. To this end novel immunohistochemical, genetic, and epigenetic biomarkers in tumour tissues samples from biobank material (blood samples and tumour tissue) will be investigated to develop a comprehensive predictive algorithm for disease prognosis. The study will provide a clinical tool for an improved targeted screening program and subsequently prevention of disease development.
1. Identify the imaging features of breast cancer with different molecular types 2. Reveal the association between hormone receptor positive/HER2 negative breast cancer and imaging histology, Oncotype Dx recurrence score 3. Combine genomics and imaging to establish a predictive model for the sensitivity of HER2-positive breast cancer targeted therapy 4. Establish an imaging genomics prediction model for triple-negative breast cancer molecular subtypes, and clarify the imaging genomics characteristics of the therapeutic targets of each subtype
The aim of this study is to establish large tissue sections for 10 kinds of tumors. in order to observe the tumor landscape on microscope. The tumors including esophageal carcinoma,gastric carcinoma,hepatocellular carcinoma etc.200 cases of each tumor will be compared by traditional sample method and landscape sample method to testify the clinical value and significance of tumor landscape pathological diagnosis .
By determining the correlation of a Crossed Leg Sign with signifcant pathology, a clinician would then be able to use this correlation to risk stratify his/her patients for significant pathology.
By determining the correlation of a Crossed Leg Sign with significant pathology, a clinician would then be able to use this correlation to risk stratify his/her patients for significant pathology.