villous adenoma

..Thorough preoperative examination and the mastering of various surgical procedures should allow the most suitable choice of treatment for each individual case...

..New strategies that improve on the current clinical and molecular screening methods should be developed so that at-risk individuals can be identified and referred for germline testing before developing their first cancer...

..She also had a history of colonic polyps and distal colonic villous adenoma. She denied ever being treated with radiation...

..urachal mucinous adenocarcinoma, 1 nonurachal mucinous and signet ring cell adenocarcinoma, and 1 nonurachal villous adenoma. In conclusion, although all cases of bladder adenocarcinoma examined were negative for PSA and PSAP, the ..

..Histopathological examinations of sections from colonoscopic biopsy materials on light microscopy revealed villous adenoma morphology...

Appendix villous adenoma is a rare pathological entity that shows a particular form of clinical presentation that is different from villous adenomas in other places along the gastrointestinal tract.

b>Villous adenoma comprises 5.6% of colon tumors. Adenomas of the colon could be divided into tubular, villous, and tubulovillous adenomas...

..We describe a case of oncocytic adenocarcinoma of the rectum, associated with a villous adenoma, arising on a 66-year-old man...

..the clinical course, the diagnostics with its difficulties as well as the therapy of the rare secreting villous adenoma with severe electrolyte and fluid depletion syndrome are described...

..6 years and a male preponderance of 67%. In six cases (33%), the lesion was pure villous adenoma. In three cases (17%), there was villous adenoma with in situ adenocarcinoma...

This report describes a case of mucinous adenocarcinoma with superficial stromal invasion and villous adenoma originating in the dome of the urinary bladder...

..PPTD should not be used in the presence of malignancy and/or high-grade dysplasia...

Ureteral tumor is prone to result in lumen obstruction. Villous adenoma is most frequently found in the colon and rectum, seldom in the urinary tract and even more rarely in the ureter or pelvis...

..old male CF patient that underwent a colonoscopy for colon cancer screening and a large, near obstructing, villous adenoma of his ileum was found...

..Appendicectomy and non-mesh hernia repair were performed. Histology revealed acute inflammation and a villous adenoma of the appendix...

PURPOSE: Considering the malignant potential of villous adenoma of the rectum, complete resection at the first intervention is desirable and yet many series suggest that a high recurrence rate must be expected...

..Among these procedures, transanal endoscopic microsurgery is gaining a primary role in many circumstances...

..There remains a place for this technique in selected patients...

..The aim of this study was to evaluate the safety and feasibility of minimal-access surgery in these patients...

..It is the aim of this program to reduce the rate of mortality of colorectal cancer (CRC) during the next decade. Up to now no data are available concerning the outcome and patient tolerance of screening colonoscopy...

..This study was designed to evaluate the long-term results of this method focused on continence function and oncologic results...

..The release of proteolytic secretions through glandular pores in some colonic adenomas disrupt the surrounding matrix, a mechanism that would facilitate neoplastic cell penetration into the lamina propria...

..From a clinical perspective, the endoscopic resectability of a lesion is more important than whether it is thought to be a sporadic adenoma or a dysplasia-associated lesion/mass...

..Classifying these tumors as a special type of colorectal cancer may facilitate the development of diagnostic adjuncts and optimal treatment protocols...

..To clarify relevant alterations of gene expression associated with adenoma-carcinoma progression, the gene expression profiles of these tumor tissues were analyzed by a cDNA array...

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..The purpose of the current study was to investigate the role of beta-catenin, E-cadherin and P-cadherin in colorectal carcinogenesis using tissue array method...

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..This study investigated the use of patient navigation within an open-access referral system and its effects on colonoscopy completion rates among urban minorities...

..To compare local resection of early rectal tumours by transanal endoscopic microsurgery (TEM) and the conventional posterior trans-sphincteric approach (Mason's operation)...

..In conclusion, MMP-7 overexpression is thought to be an early event in the adenoma-carcinoma pathway...

..In the future, large prospective studies or studies using pooled data from existing randomized controlled trial databases or polyp registries should be used to better define which patients are at low risk for advanced adenoma recurrence...

..RESULTS: Of the 22 patients, 13 underwent resection of an adenocarcinoma and 9 underwent resection of a villous adenoma. Post-operative complications included four fecal fistulas (two of which required a temporary diverting ..

..7% (61/72), respectively (not significant, P > or = .15). CONCLUSIONS: CDD was common in this asymptomatic screening population, but its presence did not degrade the diagnostic performance of primary 3D CTC for polyp detection...

..The objective of this study is to analyze the effect of this technique in the anal anatomy and compare with the manometric results...

..The patients presented no complications and no recurrence was observed during the subsequent follow-up...

..Patients with familial adenomatous polyposis bear a particularly increased risk for periampullary tumors. Data on whether the prevalence of colorectal tumors is increased in patients with sporadic ampullary neoplasms are scarce...

..In the elderly, the increased prevalence of colorectal neoplasia and the protective effect of colonoscopy may be offset by advancing age and comorbidity...

..Although there was no correlation between p185 and p53 expression in premalignant lesions and adenocarcinomas, these two proteins have an important role in the adenoma-carcinoma sequence...

..Bacteremia and infectious endocarditis from Streptococcus bovis may be related to the presence of neoplastic lesions in the large intestine and hepatic disease...

..A modified TEM procedure combining the new Storz operation rectoscope and ultrasonic dissection has been developed to overcome the limitations of the original technique...

..96% in the non-clip group (p > 0.9999). No patient with delayed bleeding required transfusion or surgery. CONCLUSIONS: Prophylactic clip placement did not decrease the occurrence of delayed bleeding after colonoscopic polypectomy...

..This study assessed the prevalence of colorectal neoplasia among patients with coeliac disease diagnosed after the age of 40 who presented with altered bowel habit or iron deficiency...

..Coloanal anatomosis was performed due to 1 villous adenoma and 19 adenocarcinomas...

..In October 2002 screening coloscopy was introduced into the National Cancer Prevention Programme in Germany. The results of an online registry are presented here...

..But even in this case, and in more advanced situations, this method allows mortality due to occlusive complications to be reduced and ensures a better quality of residual life...

..e. high-grade dysplasia or invasive carcinoma) in colorectal adenomas. A secondary goal was to assess the malignant potential of adenomas with a diameter of < 0.5 cm...

..We evaluated the clinical significance of polypectomy in cases of small colorectal adenomas, measuring less than 10 mm...

..CONCLUSIONS: The findings generally support the recommendations by the American College of Gastroenterology for average-risk patients to preferentially undergo a screening colonoscopy at age 50 in lieu of other methods...

..METHODS AND RESULTS: Forty-nine cases of colorectal villous tumours [six cases of low-grade villous adenoma, 21 of high-grade villous adenoma (VA), nine of invasive carcinoma in villous adenoma (CIVA), and 13 of pure ..

..Most clinical research addresses the technological advances and oncological outcomes of transanal endoscopic microsurgery. Our aim was to examine the functional results...

..In the current study, we examined the immunohistochemical expression of EDG-2 in colorectal mucosa and adenoma, and clarified its relation with the clinicopathological features...

..Adenomatous and carcinomatous epithelial changes can occur in Cronkhite-Canada syndrome...

..There is recent interest in performing an ultralow anterior resection laparoscopically. A technique is described that includes specimen extraction through the eventual routine defunctioning colostomy or ileostomy site...

..of the prostatic urethral urothelium and subsequent in situ adenocarcinoma sometimes associated with villous adenoma. These prostatic adenocarcinomas are analogous to nonurachal adenocarcinomas arising in the bladder from ..

..We hypothesized that, in malignant lesions of the ampulla, the T and N stages are major determinants of the patient's long-term outcome...

..Computed tomographic colonography, also known as virtual colonoscopy, is an innovative and secure technology which is revolutionizing the diagnosis of colon and rectum neoplasias...

..In these cases, follow-up conventional colonoscopy was offered...

..Few studies have evaluated risk factors for advanced colorectal neoplasia in asymptomatic individuals, compared risk factors between persons with and without polyps, or included most purported risk factors in a multivariate analysis...

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..This approach eradicates the polyp and allows an oncologic resection should the polyp prove to be malignant. The purpose of this study was to assess outcomes of a laparoscopic approach for the management of these polyps...

..At 13 Veterans Affairs medical centers, we performed colonoscopy to determine the prevalence of neoplasia and the sensitivity of one-time screening with a fecal occult-blood test plus sigmoidoscopy...

..This study reports an endoscopic technique using locally applied fluorescein-labeled antibodies for in-vivo detection of colorectal dysplasia and carcinoma...

..We hypothesized that DGE may be due to pylorospasm secondary to vagal injuries at operation and may be preventable by the addition of pyloromyotomy...

..Therefore, we hypothesized that COX-2 may play a less important role in the serrated pathway...

..The aim of this study was to compare the accuracy and safety of these 3 screening procedures in a general population of ethnic Chinese...

..To follow a cohort of patients who had undergone polypectomies in order to assess the overall risk of subsequent colorectal cancer in relation with various adenomas characteristics...

We present an exceptional case of a giant urachal tumor, consisting of both villous adenoma and mucinous adenocarcinoma of the urachus. The tumor was incidentally discovered during investigations for renal failure...

..To assess the feasibility and utility of double balloon enteroscopy (DBE) in the management of small bowel diseases in children...

..The lead point was an ampullary villous adenoma. Congenital partial (type II) malrotation was found at operation and this abnormality permitted excessive ..

..A previously healthy 65-years old male developed jaundice and right upper abdominal quadrant pain in 1996. A villous adenoma of the distal bile duct was diagnosed. A Whipple procedure was performed...

..The prevalence of neoplasia in patients with and without familiar risk was determined together with patient satisfaction with screening colonoscopy...

..The risk of various outcomes at the second examination is assessed according to findings at the first examination and the interval between examinations...

..To evaluate the feasibility and the outcome of endoscopic mucosal resection (EMR) for large colorectal tumors exceeding 4 cm (LCRT) undergoing piecemeal resection...

..As most colorectal cancers (CRC) develop from villous adenomas, studying alterations in gene expression profiles across the colorectal adenoma-dysplasia-carcinoma sequence may yield potential biomarkers of disease progression...

..This study examines whether a positive FOB is a feature of coeliac disease and whether FOB-positive subjects need investigation for coeliac disease...

..Therefore, the aim of this study was to search for a more objective parameter to help distinguish regenerative changes from epithelial dysplasia...

..To investigate the clinical application of intersphincter resection (ISR) combined with total mesorectal excision (TME) and colon-anal anastomosis in the treatment for ultra-low rectal carcinoma...

..After surgical resection histologic examination showed a mucus producing, intestinally differentiated adenoma within the diverticulum. This finding explains both the recurrent infections and the 10-year history of mucusuria...

..Case 2 was a 66-yr-old man who underwent segmental sigmoid colon resection for adenocarcinoma in a villous adenoma. Random sections from grossly unremarkable colonic wall showed a diffuse proliferation of CD117+/CD34+ ..

..on histological characterization of normal mucosa, hyperplastic polyp, polypoid adenoma, flat adenoma, tubulo-villous adenoma and cancerous tissue, respectively. In previous reports, overall accuracy ranged from 80 to 95%...

..The aim was to determine the correlation between the results of an optical biopsy system and the histopathology report of the physical biopsy specimens of the same polyps removed at colonoscopy...

..hemorrhage, stenosis and perforation are well documented but ileocolic fistulas after laser therapy for a villous adenoma have been rarely reported. We report the case of a patient with diarrhea related to an ileocecal fistula...

..Colorectal cancer is one of the most common cancers worldwide. The adenoma-carcinoma sequence in colorectal cancer has been documented approximately; however, several series of molecular mechanisms still require elucidation...

..Fourteen per cent had hyperplastic polyps, 15 per cent had tubular adenoma, and 8.6 per cent villous adenoma. Adenoma with high grade dysplasia was found in 6.6 per cent, and 5.5 per cent had nonadenomatous lesions...

We report the case of a patient diagnosed with a villous adenoma of the duodenum showing high degree dysplasia who developed a nephrotic syndrome (NS) due to a membranous nephropathy (MN), demonstrated by renal biopsy...

..To investigate the relationship of serum lipids and apolipoprotein (apoE) gene polymorphism to colorectal adenomas...

..accuracy of fecal MTAP for colorectal cancers and advanced adenomas (adenoma> 10 mm in diameter, villous adenoma, or adenoma with high-grade dysplasia) among a cohort of patients with a personal history of colon adenomas; ..

..Theme 4: Provide a resource to the scientific community. We have demonstrated successful collaboration with a wide range of clinical investigators to develop projects that are uniquely suited to a large community-based practice network. ..

..This is a new paradigm for screening, which takes advantage of the trust and cultural awareness that exists at the community center and does not rely on the primary care provider. ..

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..REVISED: October 27, 2005 (see Revision Note) ..

..They might also stimulate future studies to evaluate the CRD-BP as a therapeutic target. ..

..By investigating the oncogenic properties of the CRD-BP, the RNAs it affects in vivo, and its interactions with tumor-inducing genetic and environmental factors, we hope to uncover novel tumorigenesis pathways. ..