نتایج جستجو برای: Nasal polyp
تعداد نتایج: 51558 فیلتر نتایج به سال:
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: nasal inflammatory disorders such as chronic rhinosinusitis and nasal polyp are among the most prevalent complications with high socioeconomic costs. vascular endothelial growth factor (vegf) plays a key role in angiogenesis and cell proliferation. in the present study the effect of vegf on the development and prognosis of chronic rhinosinusitis and nasal polyp was investigated. met...
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...
Background: Nasal inflammatory disorders such as chronic rhinosinusitis and nasal polyp are among the most prevalent complications with high socioeconomic costs. Vascular Endothelial Growth Factor (VEGF) plays a key role in angiogenesis and cell proliferation. In the present study the effect of VEGF on the development and prognosis of chronic rhinosinusitis and nasal p...
Sphenochoanal poyp is rare nasal mass that originates from sphenoid sinus. In anterior rhinoscopy it may be mistaken with antrochoanal polyp. CT of paranasal sinuses and nasal endoscopy has increased diagnostic accuracy. Simple polypectomy without removal of intra sinus mass is associated with increased risk of recurrence. Treatment of sphenochoanal polyp must include removal of intrasphenoid...
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...
Background: There are several studies evaluating Helicobacter pylori (H.pylori) in nasal and sinus mucosa�in chronic rhinosinusitis however studies dealing with the direct evaluation of H.pylori in nasal polyps are limited. So the objective of this research was to evaluate the frequency of H.pylori nasal polyp and sinus mucosa of patients with nasal polyp in comparison to sinus biopsy speci...
Background & Aim: Nasal polyp is a common finding in patients referring to ENT specialists. Also, some specialists believe that there are patients with nasal polyp and some evidence of fungi. The present study was undertaken to describe coincidence of nasal polyp and fungi in patients referred to ENT ward of Rasoul-e-Akram Hospital in Tehran. Patients & Methods: 118 patients with nasal poly...
Background and Objectives: Nasal polyposis is a diseases resulting from complex pathogenetic mechanisms. Some studies showed that TGFβ1 had significant role in this pathogenesis. In this study, we investigated the roe of cytokines and mediators in polyp development. Material and Methods: In this case- control study, healthy nasal mucosal samples were obtained from 24 peopl...
Background & Aim: There are many suggestions for nasal polyp formation mechanism. The present study was carried out to evaluate T-cell infiltration in nasal mucosa and specific allergic reactions in context of probable irregular systemic immune responses in nasal polyp disease. Patients & Methods: 60 patients with nasal polyps who referred to ENT ward of Rasoul-e-Akram Hospital were studied...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید