Search results for "Intestin"
showing 10 items of 2215 documents
Octreotide for malignant bowel obstruction: Twenty years after
2012
Malignant bowel obstruction (MBO) is a challenging complication of advanced cancer. Conservative treatment of inoperable MBO in terminal cancer patients has been found to be effective in controlling the distressing symptoms caused by this complication in inoperable cancer patients. Twenty years ago, octreotide was proposed to treat symptoms related to malignant bowel obstruction. Since then several reports have confirmed the efficacy of octreotide in the management of gastrointestinal symptoms of MBO. Fifteen randomized controlled trials or observational reports with a significant number of patients treated with octreotide have been reviewed; 281 patients were surveyed. Authors reported a t…
Disconnected pancreatic duct syndrome: complete pancreas transection secondary to acute pancreatitis
2016
Disconnected pancreatic duct syndrome is a serious complication of acute pancreatitis which is defined by a complete discontinuity of the pancreatic duct, such that a viable side of the pancreas remains isolated from the gastrointestinal tract. This pancreatic disruption is infrequently observed in the clinical practice and its diagnostic and therapeutic management are controversial. We present an extreme case of disconnected pancreatic duct syndrome with complete duct disruption and pancreatic transection following acute pancreatitis, as well as the diagnostic and therapeutic processes carried out.
In vivo imaging of colitis and colon cancer development in mice using high resolution chromoendoscopy
2005
Background: Mouse models of colitis and cancer are indispensable for our understanding of the pathogenesis of these diseases. In the past, mice had to be sacrificed in order to analyse colitis activity and tumour development. We have developed a safe method for high resolution endoscopic monitoring of living mice. Methods: Mice developing colitis or colonic tumours were anaesthetised using avertine and repeatedly examined by endoscopy. A novel miniendoscope (1.9 mm outer diameter), denoted Coloview, was introduced via the anus and the colon was carefully insufflated with an air pump before analysis of the colonic mucosa. An extra working channel allowed the introduction of biopsy forceps or…
Beurteilung der entzündlichen Aktivität des M. Crohn mit der Hydro-MRT∗
2000
PURPOSE: To assess the value of hydro-MRI in the assessment of the activity of Crohn's disease. MATERIALS AND METHODS: After an oral bowel opacification using 1000 ml of a 2.5% mannitol solution, axial and coronal breath-hold sequences (T2W HASTE +/- FS, contrast-enhanced T1W FLASH FS) were acquired in 63 patients with Crohn's disease at 1.0 T. The enhancement of the bowel wall was correlated with other MRI findings, with the Crohn's disease activity index (CDAI), and the C-reactive protein (CRP). RESULTS: In Crohn's disease, contrast enhancement of the affected bowel wall is markedly increased in comparison with the normal bowel wall (+80 +/- 23% vs. +43 +/- 11%; p = 8 x 10(-11)). Positive…
Genetic Deletion of JNK1 and JNK2 Aggravates the DSS-Induced Colitis in Mice
2007
The c-Jun N-terminal kinases (JNKs) are considered as novel targets for therapy of inflammatory bowel diseases (IBD). However, the relevant JNK isoforms have to be elucidated. Here, we analyze the individual contribution of the JNK1 and JNK2 isoforms in a dextran sulfate sodium (DSS) model of experimental colitis. JNK1 and JNK2 knockout mice (JNK1 ko, JNK2 ko) and their wild-type controls (WT1, WT2) received three cycles of DSS treatment, each consisting of 1.7% DSS for 5 days, followed by 5 days with water. Animals were daily evaluated by a disease activity index (DAI) comprising measurement of body weight, estimation of stool consistency, and test for occult blood/gross rectal bleeding. A…
Confocal Laser Endomicroscopy: Technical Advances and Clinical Applications
2010
Since its introduction in 2004, confocal laser endomicroscopy (CLE) has emerged as a valuable tool for gastrointestinal endoscopic imaging. Endomicroscopy enables the endoscopist to obtain real time in vivo histology during ongoing endoscopy thereby creating “optical biopsies.” To date, numerous studies have shown potential applications of endomicroscopy in the clinical setting, including in vivo diagnosis of esophageal squamous cell carcinoma, Barrett’s esophagus, celiac disease, and colonic polyps. Moreover, recent data suggest the potential application of endomicroscopy in the field of molecular imaging. Additionally, in recent months new applications and developments in the field of con…
Surgical pathology and the diagnosis of invasive visceral yeast infection: two case reports and literature review
2013
Invasive mycoses are life-threatening opportunistic infections that have recently emerged as a cause of morbidity and mortality following general and gastrointestinal surgery. Candida species are the main fungal strains of gut flora. Gastrointestinal tract surgery might lead to mucosal disruption and cause Candida spp. to disseminate in the bloodstream. Here we report and discuss the peculiar clinical and morphological presentation of two cases of gastrointestinal Candida albicans lesions in patients who underwent abdominal surgery. Although in the majority of cases reported in the literature, diagnosis was made on the basis of microbiological criteria, we suggest that morphological feature…
Expression of Cytokeratin 7 and 20 in Pathological Conditions of the Bile Tract
2003
Expression of cytokeratin 7 (CK7) and cytokeratin 20 (CK20) helps to establish the origin of biliary and metastatic carcinomas. We investigated the expression of CK7 and CK20 in inflammatory, metaplastic and neoplastic conditions of the bile ducts, and evaluated possible relationships between the CK expression pattern and extrahepatic bile duct/gallbladder carcinomas (EBDCs) or intrahepatic bile duct carcinomas (IBDCs). We used immunohistochemistry for the investigation of 48 formalin-fixed, paraffin-embedded specimens grouped as: A) lithiasic or inflamed surgically resected extrahepatic bile ducts/gallbladders: all were CK7+/CK20+; B) percutaneous liver biopsies from patients with chronic …
Molecular imaging of gastroenteropancreatic neuroendocrine tumors.
2010
Somatostatin-receptor scintigraphy has become an obligatory molecular imaging method in the management of patients with neuroendocrine tumors when metastatic disease is suspected. Using positron emission tomography and new somatostatin analogues, sensitivity of somatostatin receptor imaging has further increased. With a combination of morphologic imaging methods, such as hybrid imaging by PET/CT, this method represents the method of choice in many centers and efforts are under way to translate somatostatin receptor imaging onto a cellular level by endoscopic confocal microscopy. Other clinically relevant functional pathways in neuroendocrine tumors that are accessible by PET imaging are glu…
Interrelation of peptidergic innervation with mast cells and ED1-positive cells in rat thymus
1991
The peptidergic innervation of rat thymus has been investigated by immunohistochemical methods, focusing on the spatial interrelationship of peptidergic nerve fibers with mast cells and macrophages in the rat. An antiserum directed against the protein gene product 9.5 (PGP 9.5) regarded as a pan-neuronal marker revealed a rich innervation, especially in the subcapsular cortex, in interlobular septa, and of the vasculature in the cortex and the corticomedullary boundary. A minor proportion of PGP 9.5-immunoreactive (ir) fibers supplied the thymic parenchyma. The main component of peptidergic innervation consisted of fibers costaining for tachykinins (TKs) and calcitonin gene-related peptide …