Search results for "Polyps"

Hereditary familial polyposis and Gardner’s syndrome: Contribution of the odontostomatology examination in its diagnosis and a case description

2005

La poliposis adenomatosa familiar (PAF) y su variante fenotípica, el síndrome de Gardner, constituyen una infrecuente patología hereditaria autosómica dominante. Se caracterizan por el desarrollo, generalmente durante la segunda y tercera década de la vida, de múltiples pólipos adenomatosos en el colon y en el recto. Estos pólipos tienen un riesgo elevado de transformación maligna subsiguiente, cosa que suele ocurrir en las décadas tercera y cuarta de la vida. Las manifestaciones fenotípicas de la PAF pueden ser muy variadas. Así, además de los pólipos colorrectales, los individuos afectos pueden presentar manifestaciones extracolónicas, entre las que se destacan: pólipos gastroduodenales, …

In Vivo Imaging of Enteric Neuronal Networks in Humans Using Confocal Laser Endomicroscopy

2012

Intermittent Dyspnea and Cyanosis in a Newborn Caused by a Hairy Polyp

2014

Advances in endoscopic imaging of colorectal neoplasia.

2010

Colon cancer screening is arguably the most important activity performed by gastroenterologists. Recent decreases in rates of death from colorectal cancer indicate that screening methods such as colonoscopy have a positive impact. There is still room for improvement, however, particularly in prevention of right-sided colon cancer. Practice issues, such as making colonoscopy more comfortable, safer, and less costly, are keys to continued success in cancer prevention. Colonoscopy techniques, technologies, and quality control measures have advanced to improve detection, classification, and removal of early neoplasias. In particular, slow, careful inspection of the colon by gastroenterologists …

Ileo-ileal invagination--a cause of recurrent mid-gastrointestinal bleeding: diagnostic and endoscopic therapy by means of push-and-pull enteroscopy.

2008

The types of lesions that cause bleeding in the small bowel are similar to those found in other areas in the gastrointestinal tract, such as vascular malformations, ulcers and inflammatory lesions, neoplasms and other less common lesions like Meckel's diverticulum. This report describes three patients with suspected mid-gastrointestinal bleeding with no significant past medical history. Before presenting to our unit the diagnostic work-up such as oesophagogastroduodenoscopy, colonoscopy and radiological small bowel imaging such as conventional enteroclysis or magnet resonance imaging enteroclysis had been performed without detecting any bleeding source. Capsule endoscopy suspected an angiod…

Push-and-pull enteroscopy using a single-balloon technique for difficult colonoscopy.

2006

Background and study aims Several factors predict difficult or incomplete colonoscopy with a standard colonoscope, including female gender, low body mass index, extensive diverticulosis, and prior pelvic surgery. Patients and methods A push-and-pull enteroscopy device and a single-balloon technique was used in 14 patients (six men, eight women; mean age 62 +/- 15 years) after failure of ileocolonoscopy or endoscopic therapy using either a standard or a pediatric colonoscope. The original ileocolonoscopy had been performed to investigate colon polyps (n = 6), an obscure inflammatory process in the ileocecal region (n = 6), or iron deficiency anemia with a positive fecal occult stool test (n …

Controlled trial for long-term low-dose erythromycin after sinus surgery for chronic rhinosinusitis

2014

Objectives/Hypothesis The efficacy of macrolides in chronic rhinosinusitis (CRS) is still under controversy. To date, only two double-blind, placebo-controlled studies have been published with differing results. None of these studies investigated the possible benefit of macrolides in the postoperative period. We conducted an investigator-initiated clinical trial using 250-mg erythromycin once a day over a period of 3 months, beginning the administration of either erythromycin or placebo 2 weeks after a surgical intervention for CRS. Study Design Randomized double-blind, placebo-controlled trial. Methods The concentrations of eosinophilic cationic protein (ECP) and myeloperoxidase in nasal s…

Review article: in vivo imaging by endocytoscopy

2011

Aliment Pharmacol Ther 2011; 33: 1183–1193 Summary Background  Endocytoscopy (EC) enables in vivo microscopic imaging at 1400-fold magnification, thereby allowing the analysis of mucosal structures at the cellular level. In contrast to fluorescence imaging with confocal laser endomicroscopy which allows analysis of mucosal structures up to 250 μm in depth, EC is based on the principle of contact light microscopy and only allows visualisation of the very superficial mucosal layer. Aim  To systematically review the feasibility and diagnostic yield of EC for in vivo diagnosis of diseases. Methods  A systematic search of the literature on diagnostic interventions in the gastrointestinal tract u…

MUC4 overexpression correlates corticoid resistance in chronic rhinosinusitis with nasal polyps

2015

Background: Some patients with chronic rhinosinusitis with nasal polyps (CRSwNP) are resistant to corticoids. Mucin 4 (MUC4) is a membrane anchored protein with a nuclear translocation domain which is modulated by corticoids. Because glucocorticoid receptor (GR) nuclear translocation is key to the anti-inflammatory effect of corticoids, we hypothesized that MUC4 is involved in the effectiveness of these drugs Objective: To analyze the role of MUC4 in corticoid effectiveness in different cohorts of patients with CRSwNP and elucidate the possible mechanisms involved Methods: 73 patients with CRSwNP took oral corticoids for 15 days. Corticoid resistance was evaluated by nasal endoscopy. The ex…

Technique of transanal endoscopic microsurgery.

1988

Sessile adenomas are predominantly localized in the rectum and lower sigma. Surgical removal is indicated but often implies an invasive surgical procedure. Using conventional transanal surgical techniques, only the lower rectum can be reached and there are high rates of recurrence. The new technique combines an endoscopic view of the rectum under gas insufflation via a stereoscopic telescope with conventional surgical preparation and suturing. Adenomas can be excised using the mucosectomy technique or full-thickness-excision, whereas carcinomas should be excised using full-thickness excision with a sufficient border of healthy mucosa. In carcinomas of the sacral cavity, we remove the retror…