Infrapyloric lymph node dissection with the surgeon on left position in 4K laparoscopic radical gastrectomy / 中华消化外科杂志

Laparoscopic radical gastrectomy is currently recognized as the standard surgical procedure for radical gastric cancer. The dissection of the sixth group of lymph node, that is the inferior pylorus region lymph node, should be performed step-by-step according to standard procedures, and surgeon on left position of patient is more conducive to the lymph node dissection of this area. The 4K laparoscopic system can increase the resolution of the surgical field of view, which provide the surgeon with a clear surgical field of vision, thereby improving the accuracy of operation, achieving the best requirements of lymph node dissection and avoiding side injury and complica-tions. The authors investigate infrapyloric lymph node dissection with the surgeon on left position in 4K laparoscopic radical gastrectomy.

Infrapyloric lymph node dissection in 4K laparoscopic radical gastrectomy with the surgeon on right position / 中华消化外科杂志

Minimally invasive technique has been widely applied and recognized in gastrointestinal surgery. In recent years, technological innovation related to minimally invasive technology emerges in endlessly. The application of 4K ultra-high definition video display technology has played impartment roles in promoting the development of surgery, technical specifications and training of minimally invasive gastrointestinal surgery. Clearly understand the anatomical structure of the inferior pyloric region is an important theoretical basis for the dissection of No. 6 lymph node. Careful anatomy with good patience of the surgeons, and good cooperation between the surgeon and assistants are helpful to reduce and prevent complications. The authors investigate the infrapyloric lymph node dissection in 4K laparoscopic radical gastrectomy with the surgeon on right position.

Características morfológicas do estômago de jaguatirica (Leopardus pardalis - Linnaeus, 1758) / Morphological characteristics of the stomach of the ocelot (Leopardus pardalis - Linnaeus, 1758)

Leopardus pardalis é uma das espécies de felinos neotropicais mais estudadas em seus aspectos ecológicos, porém informações de questões morfofisiológicas do trato digestório não são encontradas na literatura. Visando contribuir com tais informações, o objetivo deste artigo foi caracterizar a morfologia do estômago dessa espécie. Nesta pesquisa, foram utilizados cinco exemplares adultos, coletados após óbito por atropelamento ou doados pelo IBAMA ao Laboratório de Zoologia e Morfologia Animal da Universidade do Estado de Mato Grosso - Alta Floresta. Os animais foram fixados com solução aquosa de formaldeído a 10%, dissecados por meio de técnicas anatômicas. Além dos estudos anatômicos, também foram coletados tecidos para microscopia. As análises macroscópicas revelaram que o estômago era do tipo unicavitário, com presença de pequena e grande curvatura, localizado no antímero esquerdo e constituído pelas regiões características do órgão. Em seus aspectos microscópicos, mostrou-se formado pelas quatro túnicas usuais do tubo digestório: túnica mucosa, submucosa, muscular e serosa, cada uma com as particularidades características de cada região, principalmente na túnica mucosa. O estômago de L. pardalis revelou uma morfologia semelhante às espécies domésticas e selvagens, com particularidades histomorfológicas na região pilórica. Esse padrão pode estar relacionado a adaptações evolutivas no processo digestivo dessa espécie.(AU)

The species Leopardus pardalis is one of the species of neotropical felines more studied in its ecological aspects, however, information of morphophysiological questions of the digestive tract are not found in the literature. Aiming to contribute with such information, the objective of this work was to characterize the morphology of the stomach of this species. Five adult specimens, collected after death by trampling, or donated by IBAMA to the Laboratory of Zoology and Animal Morphology of the University of the State of Mato Grosso - Alta Floresta, were used in this research. The animals were fixed with aqueous solution of formaldehyde 10%, dissected through the basic techniques and instruments of anatomy, and later the material was collected for microscopy. The macroscopic analysis revealed that the stomach was of the unicavitary type, with small and great curvature, located in the left antimer and constituted by the characteristic regions of the organ. In its microscopic aspects it was formed by the four usual tunics of the digestive tube: tunica mucosa, submucosa, muscular and serosa, each one with the peculiarities characteristic of each region, mainly in the tunica mucosa. The stomach of L. pardalis revealed similar morphology to the domestic and wild species, with small histomorphological peculiarities in the pyloric region, which may be related to evolutionary adaptations in the digestive process of this species.(AU)

Two Cases of Ectopic Pancreas Located the in the Pyloric Region

Ectopic pancreas is defined as being the presence of pancreatic tissue outside its usual or habitual location and without anatomic relation either of continuity or of vascularization with the pancreatic proper. The most common developing sites are the stomach(especially greater curvature of antrum), duodenum and proximal jejunum. Most lesions do not cause any clinical symptoms, but sometimes nonspecific significant symptoms appear. We report 2 cases of ectopic pancreas located in the pyloric region in a 13 year-old girl and a 12 year-old boy who had symptoms of epigastric pain, nausea, vomiting and dyspepsia. Gastrofiberscopy revealed 2 cm sized submucosal mass with double circular folds and 0.8 cm sized submucosal polypoid mass with central umbilication in the posterior wall of the pyloric region respectively. Wedge resections were performed, although the 12 year-old boy required a second operation due to pyloric obstruction. Histologic findings showed pancreatic acini and Langerhan's islet within gastric submucosa and muscle layer, and pancreatic acini and duct within gastric submucosa layer respectively. Symptoms disappeared after complete removal of the ectopic pancreas by operation.