Application of Biologics in Treating Chronic Rhinosinusitis With Nasal Polyps in Asian Populations

Oral and Nasal Steroids for Nasal Polyps

Background: Nasal polyps are painless inflammatory lesions originated from around the middlemeatus or paranasal sinus cavity; while neurofibroma is benign peripheral nerve sheath tumor. Purpose:To report a rare case of neurofibroma concurrently with nasal polyps in chronic rhinosinusitis. Casereport: A 64-year-old female with chief complaint congestion on the right nose cavity. There was a mass on both nasal cavities. Patient diagnosed with benign mass at right nasal cavity and chronic rhinosinusitis with nasal polyps at left nasal cavity; with a differential diagnosis of chronic rhinosinusitis with bilateral nasal polyps. Computer tomography scan results showed homogeneous isodense lesion in the right nasal cavity, and mucosal thickening in left nasal cavity and maxillary sinus. Patient was managed with total extirpation of the bilateral nasal cavity mass and functional endoscopic sinus surgery. Pathological examination revealed neurofibroma in the right nasal cavity and polyps in the left nasal cavity. Clinical question: “How to differentiate inflammation with tumor of nasal and paranasal sinuses? Is there a causal relationship?” Review method: Literature searching was performed with the keywords “nasal cavity neurofibroma”, AND “nasal polyps”, AND ”chronic rhinosinusitis” through database Google Scholar, PubMed, and hand searching/e-book. Result: There were 11 literatures published in the last 5 years, and 7 articles relevant with the subject. Conclusion: Chronic rhinosinusitis with nasal polyps, along with neurofibroma on nasal cavity is a rare co-incidence, and there was no correlation between those lesions. Pathological examination is a gold standard in differentiating a definite diagnosis of neurofibromas and polyps.Keywords: nasal cavity neurofibroma, nasal polyps, chronic rhinosinusitis

Common fibrin deposition and tissue plasminogen activator downregulation in nasal polyps with distinct inflammatory endotypes

Effect of IL-10 Expression on Pathogenesis of Nasal Polypogenesis in the Patients with Chronic Rhinosinusitis with Nasal Polyp

National burden of antibiotic use for adult rhinosinusitis

Intranasal Eosinophilic Major Basic Protein May Have A Role As A Biological Marker For Chronic Rhinosinusitis With Nasal Polyps

Expanding the evidence base for the medical treatment of nasal polyposis

Biologics and the treatment of chronic rhinosinusitis

Background: Nasal polyps are benign chronic inflammatory masses with epithelial tissues of the nasal mucosa and paranasal sinuses. The clinical diagnosis is made based on sinonasal symptoms for more than three months and the presence of polyps in the nasal cavity. The classification of nasal polyps based on the histopathological structure is divided into three types, i.e., oedematous, eosinophilic polyps, inflammatory polyps, and chronic seromucous inflammatory polyps. This study aims to describe the profile of patients with nasal polyps at Dr. Soetomo Public Hospital Surabaya. Methods: This study applied a descriptive method with a retrospective approach by obtaining data from the medical records of the outpatient unit in the Ear, Nose, Throat, and Head-Neck (ENT-HN) Department of Dr. Soetomo Public Hospital Surabaya for the period January 2017-December 2018 based on age, gender, clinical symptoms, symptoms duration, polyp types, location of nasal polyp, and comorbidities. Results: The number of patients with nasal polyps was slightly more in women, as many as 13 patients or 52%, mostly aged 51-60 years old, amounting to 11 patients or 44%. The most common clinical symptom experienced by patients was nasal obstruction, as many as 24 patients or 96%. Patients who experienced symptom duration for one to three years before treatment amounted to 13 patients or 52%. Patients with histopathology of inflammatory nasal polyps were 19 patients or 76%, while patients of nasal eosinophil polyps were six patients or 24%. Additionally, patients with comorbidity in nasal polyps of allergic rhinitis medical history were 11 patients or 44%. Also, bilateral nasal polyps were mostly experienced by patients, reaching 14 patients or 56%. Conclusion: This study reveals nasal polyps in women aged 51-60 years with clinical symptoms of nasal obstruction with the results of a histopathological examination of the inflammation type at bilateral polyps.

Basophils are elevated in nasal polyps of patients with chronic rhinosinusitis without aspirin sensitivity

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Dupilumab improves patient-reported outcomes in patients with chronic rhinosinusitis with nasal polyps and comorbid asthma

Suppressor of cytokine signaling 3 expression is diminished in sinonasal tissues from patients with chronic rhinosinusitis with nasal polyps

Objectives: The primary aim was to determine the prevalence of gastrointestinal diseases in patients with chronic rhinosinusitis (CRS), utilizing the National Health Insurance Research Database (NHIRD) in Taiwan. Several studies have supported the existence of distinct immune patterns between the Asian and Western populations in CRS patients. Through the population-based case-control study, we could compare the differences between various regions and provide further treatment strategies for subsequent studies in Asian CRS patients. The secondary aim was to assess whether different types of CRS influence the correlation with specific GI diseases. Understanding how different phenotypes or endotypes of CRS may relate to distinct GI disease patterns could provide valuable insights into the underlying mechanisms and potential shared pathways between these conditions. Methods: We use the NHIRD in Taiwan. Newly diagnosed patients with CRS were selected between January 1, 2001 and December 31, 2017 as the case group, and the controls were defined as individuals without a history of CRS. Patients with CRS were divided into two groups: with nasal polyps and without nasal polyps. We also separated GI tract diseases into four groups based on their different pathophysiologies. Results: This study included 356,245 participants (CRS: 71,249 and control: 284,996). The results showed that CRS was significantly associated with some specific GI tract diseases, including acute/chronic hepatitis B, gastroesophageal reflux disease (GERD) with/without esophagitis, achalasia of cardia, peptic/gastrojejunal ulcer, Crohn's disease, and ulcerative colitis. In addition, when CRS was subcategorized into chronic rhinosinusitis with nasal polyps (CRSwNP) and chronic rhinosinusitis without nasal polyps (CRSsNP), GERD with esophagitis and peptic ulcer were significantly associated with CRSsNP. Conclusions: A significant association between CRS and premorbid GI tract diseases has been identified. Remarkably, GERD with esophagitis and peptic ulcer were significantly associated with CRSsNP. The underlying mechanisms require further investigation and may lead to new treatments for CRS. Researchers can further investigate the mechanisms by referring to our classification method to determine the implications for diagnosis and treatment.

The present study focused on the assessment of the inflammatory infiltrate that characterizes nasal polyps in patients with chronic rhinosinusitis and nasal polyposis. Inflammatory cell type was determined using specific markers. This evaluation was made possible by determining the expression of the following markers: CD20, a marker of B lymphocytes [using activated T cells (ATC) armed with CD20 antibody]; CD3, a marker of T lymphocytes (using ATC armed with anti-CD3 antibody); CD45, the leukocyte common antigen (using ATC armed with anti-CD45 antibody; and CD34, for the microvasculature of the nasal polyp (using anti-CD34 antibody). The diagnosis of chronic rhinosinusitis with nasal polyps (CRSwNP) was made according to current EPOS guidelines based on patient history, clinical examination and nasal endoscopy. We examined surgically resected nasal polyps from 127 patients diagnosed with CRSwNP, who benefited from surgical procedures at the Department of Otorhinolaryngology of our institution. The polyps were analyzed at the Department of Pathology of our institution utilizing histopathological and immunohistochemical methods as follows: Firstly, the tissues were paraffin-impregnated, sectioned and stained with hematoxylin and eosin. We then examined the expression of CD3, CD20, CD34 and CD45RO by immunohistochemistry with soluble labeled streptavidin biotin (LSAB)/horseradish peroxidase (HRP) complexes. We observed the following histopathological changes: The structure of the epithelium was evidenced by collagenous subjacent stroma with mixed areas, sometimes associated with hyaline zones. In all types of polyps, we also observed a diffuse underlayer or periglandular lymphoplasmacytic in filtrate composed predominantly from T lymphocytes and eosinophils. The histopathological changes suggest the chronic inflammation of the sinus mucosa, which was diffusely distributed in allergic polyps and with nodular distribution in fibro-inflammatory polyps. The number of B lymphocytes was greater in the fibro-inflammatory polyps. On the whole, the findings of this study indicate that the inflammatory infiltrate in nasal polyps from patients with CRSwNP is mainly composed of T cells and eosinophils in all types of polyposis. In addition, a diffuse distribution of allergic polyps and the nodular distribution of fibro-inflammatory polyps, and the hyperplasia of the seromucous glands was observed. The determination of CD20, CD3, CD34 and CD45RO could be used to assess the inflammatory infiltrate of the nasal poplyps in these patients.