choanal polyps are a form of nasal polyps that grow toward the choana with a single stalk. septochoanal polyp is a rare entity that originates from the mucosa of the nasal septum with choanal extension. the most common site of its origin is mainly the superior aspect of the posterior portion of the nasal septum. however, metaplastic ossification is a rare event in nasal polyp and to the best of...

BACKGROUND/AIMS Colonoscopy is considered to be the gold standard for detecting adenomatous polyps. Polyps are missed during colonoscopic examination at a rate that varies from 6% to 27%. The adenoma miss rate affects colonoscopic surveillance intervals and procedural quality. We aimed to assess the adenoma miss rate and the variables affecting the rate using same-day, quality-adjusted, back-to...

Background Colorectal cancer is the 3rd most common in world, with about 1.2 million new cases reported annually. It one of three causes related mortality Europe and North America. Thus, prevention detection are critical aspects managing colorectal cancer. Colonoscopy remains gold standard for screening cancer, as it valuable not only but also polyp identification. Adenoma rate a pivotal part g...

BACKGROUND Benign central airway tumors are very rare diseases. Their unspecific symptoms are responsible for late diagnosis. Endoscopic interventions with different techniques and tools are widely used for their treatment. However, in certain cases interventional endoscopy might be unsuccessful and therefore other methods such as high-dose-rate brachytherapy could be a therapeutic option. CA...

Background: Nasal polyps, a common clinical problem, are characterized by eosinophilic and mast cell inflammation.  The role of allergy and IgE in pathogenesis of nasal polyps is still unclear.  IgE receptors are important components of the immunological pathway in allergic and inflammatory diseases. Objective: To determine if the low affinity IgE receptor (CD23) is presented on nasal polyp tis...

The pathogenetic mechanism of nasal polyps remains unknown, although allergy has been cited as an important factor in the etiology of nasal polyposis. Currently there is no definite histological criterion for differentiation of allergic from inflammatory nasal polyp. However, in a few studies, tissue eosinophil count has been used for this. This study aimed to find out the agreement rate of ski...

INTRODUCTION Management of malignant colorectal polyps is controversial. The options are resection or surveillance. Resection margin status is accepted as an independent predictor of adverse outcome. However, the rate of adverse outcome in polyps with a resection margin of <1mm has not been investigated. METHODS A retrospective search of the pathology database was undertaken. All polyp cance...

Computer aided detection (CAD) systems have emerged as noninvasive and effective tools, using 3D CT Colonography (CTC) for early detection of colonic polyps. In this paper, we propose a robust and automatic polyp prone-supine view matching method, to facilitate the regular CTC workflow where radiologists need to manually match the CAD findings in prone and supine CT scans for validation. Apart ...