• Barrett's esophagus is a condition in which there is an abnormal (metaplastic) change in the mucosal cells lining the lower portion of the esophagus, from stratified squamous epithelium to simple columnar epithelium with interspersed goblet cells that are normally present only in the small intestine and large intestine. (wikipedia.org)
  • The main cause of Barrett's esophagus is thought to be an adaptation to chronic acid exposure from reflux esophagitis. (wikipedia.org)
  • The cells of Barrett's esophagus are classified into four categories: nondysplastic, low-grade dysplasia, high-grade dysplasia, and frank carcinoma. (wikipedia.org)
  • The condition is found in 5-15% of patients who seek medical care for heartburn (gastroesophageal reflux disease, or GERD), although a large subgroup of patients with Barrett's esophagus are asymptomatic. (wikipedia.org)
  • The change from normal to premalignant cells indicate Barrett's esophagus does not cause any particular symptoms. (wikipedia.org)
  • Barrett's esophagus, however, is associated with these symptoms: frequent and longstanding heartburn trouble swallowing (dysphagia) vomiting blood (hematemesis) pain under the sternum where the esophagus meets the stomach pain when swallowing (odynophagia), which can lead to unintentional weight loss The risk of developing Barrett's esophagus is increased by central obesity (vs. peripheral obesity). (wikipedia.org)
  • Barrett's esophagus occurs due to chronic inflammation. (wikipedia.org)
  • Researchers are unable to predict who with heartburn will develop Barrett's esophagus. (wikipedia.org)
  • While no relationship exists between the severity of heartburn and the development of Barrett's esophagus, a relationship does exist between chronic heartburn and the development of Barrett's esophagus. (wikipedia.org)
  • Sometimes, people with Barrett's esophagus have no heartburn symptoms at all. (wikipedia.org)
  • Some anecdotal evidence indicates those with the eating disorder bulimia are more likely to develop Barrett's esophagus because bulimia can cause severe acid reflux, and because purging also floods the esophagus with acid. (wikipedia.org)
  • However, a link between bulimia and Barrett's esophagus remains unproven. (wikipedia.org)
  • Barrett's esophagus is marked by the presence of columnar epithelia in the lower esophagus, replacing the normal squamous cell epithelium-an example of metaplasia. (wikipedia.org)
  • We hypothesize that leukocyte telomere length might be able to predict future risk of cancer and examined this in a cohort of patients with Barrett's esophagus, who are at increased risk of esophageal adenocarcinoma and thus were enrolled in a long-term cancer surveillance program. (aacrjournals.org)
  • Patients and Methods: In this prospective study, telomere length was measured by quantitative PCR in baseline blood samples in a cohort of 300 patients with Barrett's esophagus followed for a mean of 5.8 years. (aacrjournals.org)
  • A subsequent esophagogastroduodenoscopy (EGD) revealed Barrett's esophagus with an ulcerated lesion at the gastroesophageal junction. (appliedradiationoncology.com)
  • Histologic reports of beta-hCG producing Barrett's adenocarcinomas of the esophagus have been reported, 2 as well as gonadotropin-producing adenocarcinomas of the pancreas, stomach and prostate. (appliedradiationoncology.com)
  • After 30 weeks of follow-up, Wistar rats operated on RYGB, OAGB with a short BPL (15 cm, OAGB-15), or a long BPL (35 cm, OAGB-35), and unoperated rats exhibit no cases of esogastric cancer, metaplasia, dysplasia, or Barrett's esophagus. (nature.com)
  • Intestinal metaplasia has been implicated in its genesis in cases related to Barrett's esophagus [11]. (gavinpublishers.com)
  • Barrett's oesophagus and oesophageal adenocarcinoma: mechanisms of carcinogenesis and tumour biology. (imim.cat)
  • Barrett's oesophagus, defined as the substitution of the squamous epithelia of the distal oesophagus by columnar epithelia due to gastroesophageal reflux, constitutes the precursor lesion to oesophageal adenocarcinoma. (imim.cat)
  • Dr. Manuel Pera has a long-standing interest in understanding the pathogenesis of Barrett's oesophagus and its malignant transformation process to oesophageal adenocarcinoma. (imim.cat)
  • In this first study, it was demonstrated that biliopancreatic reflux, which is very prevalent in Barrett's oesophagus patients, acted in the animal model as a promoting mechanism of oesophageal carcinogenesis when the number of tumours increased and at the same time produced a hystopathological change that made way for the development of carcinomas with glandular differentiations. (imim.cat)
  • This data support the hypothesis on the origin of Barrett's oesophagus in humans from cells of the oesophagus itself. (imim.cat)
  • Recently we have demonstrated that the oesophageal keratinocytes in rats with chronic reflux action express the Cdx2 transcription factor that is a determiner for the apparition of an intestinal phenotype, both in the stomach (intestinal metaplasia) and in the oesophagus (Barrett's metaplasia) (J Gastrointest Surg 11:869, 2007). (imim.cat)
  • In line with the translational research component, Dr. Pera's laboratory is primarily interested in characterising the phenotypic changes that occur in the squamous epithelium of the proximal oesophagus exposed to a mixed reflux of bile and acid, and its evolution towards the development of cardiac epithelium and intestinal metaplasia with goblet cells in a clinical model of Barrett's oesophagus developed after a subtotal oesophagectomy and reconstruction with an oesophagogastrostomy. (imim.cat)
  • It is also crucial to determine whether the squamous epithelium of patients with Barrett's oesophagus is more prone to undergoing a process of transdifferentiation toward the acquisition of a columnar phenotype. (imim.cat)
  • Current concepts in the prevention of cancers of the distal esophagus and proximal stomach have emerged from advances in our understanding of the specific molecular events that occur during the evolution of these tumors. (gerdhelp.com)
  • Conventionally, proximal tumors (Esophagogastric Junction (EGJ)) are distinguished from distal tumors. (gavinpublishers.com)
  • It seems that, with the decline in Helicobacter pylori infections, there has been a decrease in the incidence of distal tumors, while the incidence of proximal tumors has increased [1,2]. (gavinpublishers.com)
  • Proximal and distal adenocarcinomas are known to have different behaviors and manifestations, but the literature shows discrepant data on such aspects in this type of cancer, especially regarding proximal tumors [4]. (gavinpublishers.com)
  • Furthermore, proximal adenocarcinoma is associated with older patients, and unfortunately diagnosed at more advanced pathological stages [3,4,10]. (gavinpublishers.com)
  • All 8 EBV-GCLSs occurred in male patients and invaded deep submucosa (SM2) without lymph node metastasis (LNM), four (50%) of which had synchronous non-gastric malignant tumors (3 gastric gastrointestinal stromal tumors and 1 primary clear cell renal cell carcinoma), and four (50%) arose in the proximal stomach. (biomedcentral.com)
  • In this disease, acidic stomach, bile, and small intestine and pancreatic contents cause damage to the cells of the lower esophagus. (wikipedia.org)
  • Most cases of paraneoplastic AN involve an adenocarcinoma,[5] most commonly one arising in the gastrointestinal tract (stomach or liver[3] ) and less commonly in the lungs, ovaries, uterus, breasts, kidneys, prostate or bladder. (medscape.com)
  • This study from South Australia using the state's Cancer Registry data provides compelling evidence for a significant increase in the incidence of young-onset (18-50 years) gastrointestinal (oesophageal, stomach, colon and rectum, and pancreas) adenocarcinomas over the last three decades. (mdpi.com)
  • OAGB, as all Omega-loop surgical strategies, is characterized by the direct anastomosis of the biliopancreatic loop to the stomach, instead of interposing an alimentary loop as in the Roux-en-Y procedures. (nature.com)
  • Gastrectomy, either total or subtotal (also called partial), is the treatment of choice for gastric adenocarcinomas, primary gastric lymphomas (originating in the stomach), and the rare leiomyosarcomas (also called gastric sarcomas). (surgeryencyclopedia.com)
  • Adenocarcinomas are by far the most common form of stomach cancer and are less curable than the relatively uncommon lymphomas, for which gastrectomy offers good chances of survival. (surgeryencyclopedia.com)
  • If the upper end of the stomach is diseased, the end of the esophagus and the upper part of the stomach are clamped together. (surgeryencyclopedia.com)
  • The diseased part is removed, and the lower part of the stomach is attached to the esophagus. (surgeryencyclopedia.com)
  • The existence of synchronous tumors of the esophagus and stomach is not unusual, the radical surgical treatment could be carried out whenever possible. (biomedcentral.com)
  • Its association with distal tumors is more evident, which is reinforced by studies in eastern populations. (gavinpublishers.com)
  • Patients with early tumors located in the upper gastric cancer and adenocarcinoma infiltrating the dentate line were also excluded. (biomedcentral.com)
  • This mechanism also explains the selection of HER2/neu (also called ERBB2) and the overexpressing (lineage-addicted) cancer cells during the process of carcinogenesis, and the efficacy of targeted therapy against the Her-2 receptor with trastuzumab (Herceptin) in the treatment of adenocarcinomas at the gastroesophageal junction. (wikipedia.org)
  • During episodes of reflux, bile acids enter the esophagus, and this may be an important factor in carcinogenesis. (wikipedia.org)
  • 20 weeks) of biliopancreatic secretions towards the oesophagus per se, without concomitant administration of the carcinogen is sufficient to induce the development of areas of glandular metaplasia and adenocarcinomas (Carcinogenesis 21:1587, 2000). (imim.cat)
  • For patient education information, see the Heartburn and GERD Center , Esophageal Cancer (Cancer of the Esophagus) , and the Esophageal Cancer Directory . (medscape.com)
  • For patient education information, see the Heartburn and GERD Center and Esophageal Cancer (Cancer of the Esophagus). (medscape.com)
  • The principal histologic types of esophageal cancer are squamous cell carcinoma (SCC) and adenocarcinoma. (medscape.com)
  • For adenocarcinomas that straddle the GEJ, it can be difficult to determine whether the tumor originated in the esophagus or in the gastric cardia. (gerdhelp.com)
  • The similarities and differences in risk factors, molecular pathogenesis, and in preventive strategies for adenocarcinomas of the esophagus and gastric cardia are highlighted. (gerdhelp.com)
  • Cardia adenocarcinoma is shown to affect male patients at a disproportionally higher rate [5]. (gavinpublishers.com)
  • The relationship with hormonal factors is curious, since there seems to be an association between higher concentrations of Dehydroepiandrosterone (DHEA), circulating estradiol and free estradiol and lower risks of cardia adenocarcinoma in men [6-9]. (gavinpublishers.com)
  • To conduct a comparative analysis of the clinical behavior of both cardia and antral adenocarcinomas. (gavinpublishers.com)
  • Synchronous gastric cancer was defined as detection of gastric cancer before surgery based on preoperative esophagogastroduodenoscopy(EGD) that was pathologically proven as adenocarcinoma.Any patient who received simultaneous endoscopic resection for esophageal or gastric cancer was excluded. (biomedcentral.com)
  • Lymphomas occurring in this setting tend to be aggressive and widespread at the time of diagnosis. (medilib.ir)
  • Later stages of adenocarcinoma may be treated with surgical resection or palliation. (wikipedia.org)
  • From January 2009 to December 2021, patients who had primary ESCC and gastric adenocarcinoma and received simultaneous radical surgical resection at the Department of Cardiothoracic Surgery in Huashan Hospital were retrospectively enrolled. (biomedcentral.com)
  • 8-13 Walsh et al evaluated outcomes of esophageal adenocarcinoma (AC) patients treated with 40 Gy in 15 fractions of RT combined with cisplatin and 5-fluorouracil (5-FU) chemotherapy followed by surgical resection compared with surgical resection alone. (appliedradiationoncology.com)
  • however, this metaplasia confers an increased risk of adenocarcinoma. (wikipedia.org)
  • In 1989 Dr. Manuel Pera and his group described for the first time (Cancer Res 49:6803,1989) inducing areas of columnar metaplasia and adenocarcinomas in the oesophagus of rats after the development of a chronic reflux of duodenal content by means of an oesophagojejunal anastomosis and administration of the carcinogen 2,6-DMNM. (imim.cat)
  • High-grade dysplasia and early stages of adenocarcinoma may be treated by endoscopic resection or radiofrequency ablation. (wikipedia.org)
  • We retrospectively analyzed the clinical data of 16 patients who underwent resection of synchronous advanced esophageal squamous cell carcinoma (ESCC) and gastric adenocarcinoma from January 2009 to Dec 2021. (biomedcentral.com)
  • In this study, we retrospectively analyzed the clinical data of 16 patients who received synchronous resection of advanced esophageal squamous cell carcinoma (ESCC) and gastric adenocarcinoma at our institution, and evaluated the feasibility and efficacy of this treatment modality and analyzed the impacts of different clinical parameters on the overall survival. (biomedcentral.com)
  • This change is considered to be a premalignant condition because it is associated with a high incidence of further transition to esophageal adenocarcinoma, an often-deadly cancer. (wikipedia.org)
  • Despite an overall decline in its incidence in recent decades, gastric adenocarcinoma remains the fourth most common type of cancer and the second or third leading cause of cancer-related deaths worldwide. (gavinpublishers.com)
  • In contrast, secondary GI involvement is relatively common, occurring in approximately 10 percent of patients with limited stage NHL at the time of diagnosis, and up to 60 percent of those dying from advanced NHL [ 5,7 ]. (medilib.ir)
  • Postoperative complications (dynamic ileus, abdominal infection, and pancreatic leakage) occurred in three patients (15%) in the hand-sewn anastomosis group and in four patients (13.3%) in the overlap anastomosis group (anastomotic leakage, anastomotic bleeding, dynamic ileus, and duodenal stump leakage). (biomedcentral.com)
  • Cascade of events that lead from gastroesophageal reflux disease to adenocarcinoma. (medscape.com)
  • On the other hand, the adenocarcinoma seems to be related to obesity, H. pylori infection, reflux disease and also to alcohol [15,16]. (gavinpublishers.com)
  • Our group offered the hypothesis then that when acted upon by components of duodenal reflux, the keratinocytes of the basal layer of the squamous epithelium of the oesophagus would have the potential to undergo a transdifferentiation process towards acquiring a columnar phenotype. (imim.cat)
  • Esophageal Web An esophageal web is a thin mucosal membrane that grows across the lumen of the upper esophagus and may cause dysphagia. (msdmanuals.com)
  • Familial AN, drug-induced AN, AN occurring in hyperinsulinemic states (eg, diabetes, obesity), AN associated with polycystic ovary disease, and AN associated with a spectrum of autoimmune disease in women should be considered before AN is determined to represent a paraneoplastic syndrome. (medscape.com)
  • This is an unusual manifestation of a paraneoplastic syndrome resulting from an esophageal sarcomatoid adenocarcinoma. (appliedradiationoncology.com)
  • MRCP disclosed about 1.9×1.8 cm sized heterogeneously enhancing mass in ampulla of Vater, causing obstructions of distal common bile duct. (koreamed.org)
  • Abdominal computed tomography (CT) and magnetic resonance cholangiopancreatography (MRCP) disclosed about 1.9×1.8 cm sized heterogeneously enhancing mass in ampulla of Vater, causing obstruction of distal common bile duct, and dilatation of biliary tree and Wirsung duct. (koreamed.org)
  • This report reviews those events and focuses on current concepts in the prevention of adenocarcinomas at the GEJ. (gerdhelp.com)
  • adenocarcinoma is the most common in the distal one third. (msdmanuals.com)
  • SCC is the most common histology in Eastern Europe and Asia, while adenocarcinoma is most common in North America and Western European countries. (medscape.com)
  • This study compared the long-term consequences of two common forms of bariatric surgery: one-anastomosis gastric bypass (OAGB) and Roux-en-Y Gastric Bypass (RYGB) in a preclinical rat model. (nature.com)
  • Acanthosis nigricans (AN) manifests as a hyperpigmented, velvety thickening of the skin that usually occurs in the intertriginous zones, including the axillae, groin, neck, and inframammary folds. (medscape.com)
  • Liposarcomas spread locally, and several may occur in the same area. (ivis.org)
  • In turn, this provokes an advantage for cells more resistant to these noxious stimuli in particular HOXA13-expressing stem cells that are characterised by distal (intestinal) characteristics and outcompete the normal squamous cells. (wikipedia.org)
  • Other paraneoplastic syndromes that commonly occur with AN include tripe palms and the sign of Leser-Trélat (which are discussed below). (medscape.com)