<b>Introduction:</b> Mesenteric cysts (MCs) are a rare pathology of the abdominal cavity (with an incidence of 1/27.000 to 1/250.000 admissions) and less than 1000 cases have been described in the specialized literature.
View Article and Find Full Text PDFRev Gastroenterol Mex (Engl Ed)
October 2024
Because of the growing demand for high-quality fuels, the light cycle oil fraction improvement including cetane number improvement is important. The main way to reach this improvement is the ring opening of cyclic hydrocarbons, and a highly effective catalyst should be found. Cyclohexane ring openings are a possible option to investigate the catalyst activity.
View Article and Find Full Text PDFDevelopment of novel Cu-based catalysts has become one of the frontiers in the catalytic production of platform chemicals and in environment protection. However, the known methods of their synthesis are too complicated and result in materials that cannot be used instantly as commercial catalysts. In the present work, a novel material has been synthesized by the facile method of deposition-precipitation using thermal hydrolysis of urea.
View Article and Find Full Text PDFIn this paper, the effect of hydrogenation, in the amount of 0.15 wt.%, on the short-term creep of a titanium Ti-2.
View Article and Find Full Text PDFThe nonoxidative conversion of ethanol to acetaldehyde under thermal and microwave heating was studied on mixed oxide ZnO-CuO-SiO catalysts modified with additives of tungsten carbide nanoparticles. The results revealed that the WC-modified catalyst exhibited superior activity and selectivity under microwave heating conditions. It is assumed that when microwave heating is used, hot zones can appear at the contact points of WC nanoparticles and active centers of the mixed oxide ZnO-CuO-SiO catalyst, which intensively absorb microwave energy, allowing the more efficient formation of acetaldehyde at moderate temperatures.
View Article and Find Full Text PDFIsolated rectus abdominis muscle endometriosis is very uncommon with less than 20 case reports being published to date since its first description in 1984 by Amato and Levitt. We report another case of isolated rectus abdominis endometriosis in a 37-year-old patient with a previous caesarian section. We also discuss the diagnostic and treatment particularities in these patients.
View Article and Find Full Text PDFVasilii Ivanovich Shestov during the Great Patriotic War performed various tasks concerning the organization of medical support in the Leningrad naval base, consulted on an issue of production and use of hospital and medical transport ships, worked on the organization of medical support in Schliessburg and etc. Shestov performed a considerable amount of research and methodological works concerning the establishment of the discipline "Organisation of naval medical support". He is considered as one of the founders of the theory of naval medical evacuation support.
View Article and Find Full Text PDFIn the article about The First Naval Hospital, that became famous during the Great Patriotic War, the authors present the facts of the heroic work of the hospital and its staff under the hardest conditions of the Siege of Leningrad, in an atmosphere of constant shelling, its productive clinical and scientfic work during the war years (1941-1945). As a material for the preparation of this article were used documents of the Military-Medical Museum, factual information about the history of the hospital published in various sources.
View Article and Find Full Text PDFThe medical support of allied convoys during the Great Patriotic War had a number of features. The Intensity of power of the fighting, the meteorological conditions, the composition of convoy's forces, the kind of enemy's weapon - had a significant impact on the structure of losses in personnel. The main type of medical care on the ships of 2-3rd rank was predoctor care.
View Article and Find Full Text PDFMucocele of the appendix is an infrequent entity, characterized by distension of the lumen due to accumulation of mucoid substance and is rarely diagnosed preoperatively. If untreated, mucocele may rupture producing a potentially fatal entity known as pseudomyxoma peritonei. The type of surgical treatment is related to the dimensions and the histology of the mucocele.
View Article and Find Full Text PDFSpontaneous diaphragm rupture is extremely rare. Usually a diaphragm rupture is trauma induced. We describe a case of an 18-year old patient admitted 2 hours after onset, presenting severe epigastric and left sided chest pain without any trauma history.
View Article and Find Full Text PDFVermiform appendix torsion is rare, and even more uncommon is the volvulus of appendiceal mucinous tumors. To our knowledge, only nine cases of torsion of the vermiform appendix associated with appendiceal mucinous neoplasms have been reported up to date. We report a case of secondary torsion of the vermiform appendix with mucinous cystadenoma in a 30-year-old man.
View Article and Find Full Text PDFGall-stone intestinal obstruction (GSO) is an unusual form of mechanical obstruction and a rare complication of cholelithiasis. The treatment options are controversial, usually the management is surgical but associated with significant morbidity and mortality. A spontaneous evacuation of the gall-stone that had induced GSO is even more exceptional, only few reports being published up to date.
View Article and Find Full Text PDFBackground: Gastrointestinal stromal tumors (GISTs) are low-grade malignant tumors that may arise anywhere in the alimentary tract, and in the past, most of them were diagnosed as intestinal leiomyoma or leiomyosarcoma. GISTs of the duodenum make up only 4.5% of all GISTs.
View Article and Find Full Text PDFPseudomyxoma peritonei (PMP) is rare being characterized by intraperitoneal accumulation of mucinous ascites produced by neoplastic cells, mostly originating from a perforated appendiceal adenoma. The clinical signs of the disease are variable, and preoperative diagnosis is often difficult. We describe the clinical case of a 67-year-old patient referred to our unit one month after a left inguinal hernia repair, presenting clinical signs compliant with PMP.
View Article and Find Full Text PDFAcute abdominal pain with peritonitis due to sudden extravasation of lymph into the peritoneal cavity is a rare condition that is often mistaken for other causes of acute abdomen. The diagnosis of spontaneous chylous peritonitis is rarely suspected preoperatively, usually misdiagnosed with diverse common surgical emergencies. We report the case of an 81 year old female who presented with typical symptoms of acute abdomen, presumed as acute mesenteric ischemia.
View Article and Find Full Text PDFEndoscopic variceal ligation is superior to sclerotherapy because of its lower rebleeding and complication rates. However, ligation may be associated with life-threatening bleeding from postbanding esophageal ulcer. We report a case of a 49-year-old male with massive hemorrhage from esophageal ulcer on 8th day after successful band ligation of bleeding esophageal varices caused by postviral liver cirrhosis (Child-Pugh class C).
View Article and Find Full Text PDFIntroduction: Mucinous cystadenocarcinoma of the appendix with invasion of the anterior abdominal wall and cutaneous fistula development is a rare condition. To the best of the authors' knowledge, five such cases have been reported in the medical literature.
Methods And Results: The patient was a 68-year-old man who presented with a mass growing through the incisional scar and a skin fistula with mucinous discharge 1 year after appendectomy via McBurney's incision.