Endoscopic submucosal dissection (ESD) requires a high skill level due to poor visualization and instability in the cutting area. Mucosal flap formation after beginning submucosal dissection is the most difficult part of the procedure but improves visibility in the cutting area and allows for easier dissection, because the mucosal flap can be lifted with an attachment fitted to the endoscope. A...

INTRODUCTION Confocal laser endomicroscopy (CLE) is becoming a popular method for optical biopsy of digestive mucosa for both diagnostic and therapeutic procedures. Computer aided diagnosis of CLE images, using image processing and fractal analysis can be used to quantify the histological structures in the CLE generated images. The aim of this study is to develop an automatic diagnosis algorith...

Oral postinflammatory pigmentation (OPP) is a discoloration of the oral mucosa caused by an excess of melanin production and deposition within the basal layer of the epithelium and connective tissue of areas affected by chronic inflammation. Therefore, it is mandatory to demonstrate the association with a previous or concomitant inflammatory process in the same area of oral mucosa. Clinically O...

This study investigated the morphohistology of the digestive tract and the mean intestinal coefficient of the damsel fish Stegastes fuscus captured from the tidal pools of Northeastern Brazil. The wall of the digestive tract of S. fuscus is composed of the tunica mucosa, tunica muscularis, and tunica serosa. The esophagus is short with sphincter and thick distensible wall with longitudinally fo...

Emphysematous cystitis is a rare disorder caused by bacterial infection and characterized by gas accumulation within the bladder wall with cyst formation. This report describes the histopathological characteristics of emphysematous cystitis found in a diabetic female beagle induced by streptozotocin and alloxan. Macroscopically, multiple cyst-like structures were observed on the cut surface of ...

Telocytes (TCs), a new type of interstitial cells, were identified in many different organs and tissues of mammalians and humans. In this study, we show the presence, in human oesophagus, of cells having the typical features of TCs in lamina propria of the mucosa, as well as in muscular layers. We used transmission electron microscopy (TEM), immunohistochemistry (IHC) and primary cell culture. ...

Submucosal chromoendoscopy involves the injection of a solution containing a vital stain, usually indigo carmine, into the intestinal wall submucosal layer. This allows to: Better delimit and characterize the various epithelia present (colonic mucosa, adenoma, hyperplastic polyp, serrated polyp, small bowel mucosa); expose and delimit lesion implantation areas; cooperate in the lifting of resec...

Summary. Breast cancer has a high potential for metastasis, usually to the lungs, bones, liver and lymph nodes. Metastases in the holow organs of the digestive system are rare and mainly affectes the stomach and colon. They are characterized by very different clinical and radiological manifestations. We have warned that the initial unrecognized breast cancer can appear as a primary tumor of the...

Objectives: A method of closing a large tracheocutaneous fistula by a combination of a palatal mucosal graft with a turnover adiposal flap is presented. Methods: Mucosa of the same size as the tracheal defect was harvested from the hard palate and grafted just caudal to the fistula. After the mucosal graft had taken, a local flap containing the mucosal graft was turned over the tracheal defect ...

The cell population of the upper jejunal mucosa has been studied in cases of tropical sprue from the Far East and Middle East, and in similar cases arising in western Europe (;post-infective malabsorption'), and compared with cases of untreated coeliac disease and patients without small bowel disease.Infiltration of the epithelial layer of the upper jejunal mucosa by lymphocytes was found in tr...