Langerhans cell histiocytosis is a disease with different clinical presentations and a wide spectrum of organ involvements. Rarely Langerhans cell histiocytosis can involve the gastrointestinal tract of adult patients. A case of infiltration of gastric mucosa by Langerhans cell histiocytosis is presented.
View Article and Find Full Text PDFWorld J Gastroenterol
February 2015
This report presents a case involving a unique observation of a high-grade squamous dysplasia involving the entire esophagus. Dysplastic cells were located exclusively in the basal portion of the esophageal squamous epithelium. The findings were documented using histologic analysis of the step-biopsies from the entire esophagus, histologic examination of the esophagectomy-specimen, immunohistochemical analysis, and molecular pathologic analysis of the p53 gene.
View Article and Find Full Text PDFBackground: Oesophageal adenocarcinoma or Barrett's adenocarcinoma (EAC) is increasing in incidence and stratification of prognosis might improve disease management. Multi-colour fluorescence in situ hybridisation (FISH) investigating ERBB2, MYC, CDKN2A and ZNF217 has recently shown promising results for the diagnosis of dysplasia and cancer using cytological samples.
Methods: To identify markers of prognosis we targeted four selected gene loci using multi-colour FISH applied to a tissue microarray containing 130 EAC samples.
Criteria for the diagnosis of serrated colorectal lesions (hyperplastic polyp, sessile serrated adenoma without or with dysplasia--which we called mixed polyp--and traditional serrated adenoma) for which consensus has been reached should be validated for applicability in daily practice in terms of inter-observer reproducibility and their association with clinical features and (epi)genetic events. A study set was created from a consecutive series of colorectal polyps (n = 1,926) by selecting all sessile serrated adenomas, traditional serrated adenomas and mixed polyps. We added consecutive series of hyperplastic polyps, classical adenomas and normal mucosa samples for a total of 200 specimens.
View Article and Find Full Text PDFFoveolar gastric metaplasia of the duodenum (FGM) is considered as imperfect mucosal healing in the context of H. pylori gastritis and intake of NSAIDs or ASS. Typical endoscopic findings are redness of the mucosa, erosion/ulcer and loss of mucosal folds.
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