OBJECTIVES/HYPOTHESIS Chronic rhinosinusitis with nasal polyposis (CRSwNP) is a disease process that is driven, in part, by intrinsic mucosal inflammation. Surgery plus continued medical therapy is commonly elected by medically recalcitrant, symptomatic patients. The objective was to evaluate the prevalence of nasal polyp recurrence up to 18 months after endoscopic sinus surgery (ESS) with cong...

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...

OBJECTIVE Nasal polyposis is a chronic inflammatory disease of the nasal mucosa. The pathogenesis of nasal polyps is still not entirely known and has been debated for many years. The aim of the present study was to evaluate the expression of interferon gamma and TNF-alpha secreted by Th1 lymphocytes and to analyze their role in the etiology of nasal polyps. METHODS 12 patients with nasal poly...

BACKGROUND Nasal polyposis has different etiologies in Western and Eastern countries. Furthermore, its pathogenesis is still poorly understood. OBJECTIVE To determine the T-cell phenotypes involved in nasal polyposis in Chinese patients. METHODS Twenty-four Chinese patients with nasal polyps were studied. CD4, CD8, Foxp3, and interleukin (IL) 17 were analyzed by immunohistochemical staining...

BACKGROUND/AIM The aim of this study was to investigate the etiological role of human papilloma virus (HPV), herpes simplex virus (HSV), varicella-zoster virus (VZV), Epstein-Barr virus (EBV), cytomegalovirus (CMV), and human herpes virus-6 (HHV-6) and -7 (HHV-7) in the occurrence of nasal polyposis. MATERIALS AND METHODS Nasal polyp samples from 30 patients with nasal polyposis and normal na...

Malignant peripheral nerve sheath tumors of the nose and paranasal sinuses are extremely uncommon. We report the case of a 65-year-old woman who presented with a rapid emergence of "nasal polyps" that completely obstructed her nasal passages. Six years earlier she had been assessed elsewhere for nasal polyps. At presentation, the patient exhibited gross polyposis, with lesions protruding from b...

OBJECTIVE To analyze the immunological pattern of nasal polyposis in patients with and without allergy, the percentages of CD4+ cells expressing intracellular interferon-gamma and interleukin-4 (T helper [T(H)] type 1 and 2 cells) were measured by flow cytometry in samples from patients with nasal polyps. METHODS Samples from 32 patients (16 atopic, 16 nonatopic) were studied. The fresh nasal...

OBJECTIVES We assessed the effects of endoscopic sinus surgery on quality of life of patients with nasal polyposis or chronic sinusitis. PATIENTS AND METHODS Thirty patients (5 females, 25 males; mean age 36 years; range 17 to 58 years) who underwent endoscopic sinus surgery were prospectively evaluated. The diagnoses were nasal polyposis in 15 patients and chronic sinusitis in 15 patients. P...

OBJECTIVES Severe asthma is found in approximately 10% of patients with asthma. Some factors associated with worse asthma control include rhinitis, gastroesophageal reflux disease, vocal cord dysfunction (VCD), nasal polyposis and bronchiectasis. Therefore, we evaluated the prevalence of these illnesses in patients with severe asthma. METHODS We conducted a retrospective analysis of data obta...