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Two major genetic pathways leading to colorectal carcinoma can well be distinguished; the 'suppressor pathway', which is characterized by inactivation of tumor-suppressor genes and the 'mutator pathway', which is characterized by microsatellite instability. The purpose of this study is to explore a third putative pathway; microsatellite and chromosome stable colorectal cancer where an alternative cancer-causative mechanism might play a role.
Patients with familial colorectal cancer will be characterized with respect to family history, medical history and demographic characteristics. The histopathology of the tumors will be reviewed. Tumor specimens will be analysed on molecular defects.
Observational Model: Defined Population, Primary Purpose: Screening, Time Perspective: Longitudinal, Time Perspective: Retrospective
Active, not recruiting
Published on BioPortfolio: 2014-08-27T03:48:58-0400
This is a prospective randomized trial that aimed to compare the short-term clinical outcomes and systemic inflammatory/cytokine responses of endoscopic submucosal dissection versus laparo...
This is a Registry that invites patients undergoing colorectal surgery for colorectal cancer. Epidemiological data is collected. The Registry includes tumor tissue and blood banks for anal...
Correct identification of Lynch syndrome at the time of colorectal cancer presentation is important. We aim to find best ways to screen patients with colorectal cancer in Korea.
The purpose of this study is to produce a user-friendly tool- in the form of a questionnaire - to accurately assess early quality of life in patients after abdominal colorectal surgery fro...
The performance of SGM-101, an intraoperative imaging agent, will be compared to that of standard "white light" visualization during surgical resections of colorectal cancer.
Although the use of endoscopic submucosal dissection (ESD) as a minimally invasive treatment for large superficial colorectal neoplasms is increasing, colorectal ESD remains technically challenging. A...
Endoscopic resection of large colorectal lesions is well reported and is the first line of treatment for all noninvasive colorectal neoplasms in many centers, but little is known about the outcomes of...
Flexible sigmoidoscopy (FS) screening reduces colorectal cancer incidence and mortality. Its potential to detect proximal neoplasms depends on colonoscopy referral. We estimated diagnostic performance...
Colorectal cancer (CRC) incidence and mortality are higher in black vs white populations. The reasons for these disparities are not clear, yet some guidelines recommend screening black persons for CRC...
The subject of colorectal neuroendocrine neoplasms (NENs), subdivided into well-differentiated NENs, termed neuroendocrine tumours (NETs; grade (G) 1 and 2), and poorly-differentiated NENs, termed neu...
Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI.
A group of autosomal-dominant inherited diseases in which COLON CANCER arises in discrete adenomas. Unlike FAMILIAL POLYPOSIS COLI with hundreds of polyps, hereditary nonpolyposis colorectal neoplasms occur much later, in the fourth and fifth decades. HNPCC has been associated with germline mutations in mismatch repair (MMR) genes. It has been subdivided into Lynch syndrome I or site-specific colonic cancer, and LYNCH SYNDROME II which includes extracolonic cancer.
Hereditary nonpolyposis colorectal neoplasms associated with other malignancies, more commonly of ovarian or uterine origin. When also associated with SEBACEOUS GLAND NEOPLASMS, it is called MUIR-TORRE SYNDROME.
A form of LYNCH SYNDROME II associated with cutaneous SEBACEOUS GLAND NEOPLASMS. Muir-Torre syndrome is also associated with other visceral malignant diseases include colorectal, endometrial, urological, and upper gastrointestinal neoplasms.
Clusters of colonic crypts that appear different from the surrounding mucosa when visualized after staining. They are of interest as putative precursors to colorectal adenomas and potential biomarkers for colorectal carcinoma.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...
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