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Introduction The importance of our study lies in the fact that we have demonstrated the occurrence of mechanical dysfunction within polypoid tissues, which promotes the development of polyps in the nasal cavity. Objective To change the paradigm of nasal polyposis (NP). In this new conception, the chronic nasal inflammatory process that occurs in response to allergies, to pollution, to changes in the epithelial barrier, or to other factors is merely the trigger of the development of the disease in individuals with a genetic predisposition to an abnormal tissue remodeling process, which leads to a derangement of the mechanical properties of the nasal mucosa and, consequently, allows it to grow unchecked. Data Synthesis We propose a fundamentally new approach to intervening in the pathological process of NP, addressing biomechanical properties, fluid dynamics, and the concept of surface tension. Conclusion The incorporation of biomechanical knowledge into our understanding of NP provides a new perspective to help elucidate the physiology and the pathology of nasal polyps, and new avenues for the treatment and cure of NP.

Introduction Recurrent laryngeal nerve injury caused by cardiovascular disease is a rare condition, and often it is the only prominent sign of an imminent break of an aortic artery aneurysm. Objective To report left laryngeal paralysis caused by a great aortic arch aneurysm and to highlight the importance of an otorhinolaryngologic evaluation along with a thoracic radiologic study. Resumed Report A 42-year-old man complained of thickness of his voice and dysphagia for 3 months, but no thoracic pain or other relevant complaints. Video laryngoscopy revealed immobility of his left vocal fold in the paramedian position. Imaging was obtained for investigation, including magnetic resonance imaging of his thorax, which showed a fusiform aneurysm in the aortic arch, leading to recurrent compression of the left laryngeal nerve. The patient was successfully treated with endovascular repair of the aneurysm. At 2-month follow-up, there was still no recovery of the laryngeal mobility. Conclusion An aortic artery aneurysm can suddenly break, requiring emergency heart surgery, and the results can be fatal in many cases. We suggest routine exam of the vocal folds in all patients with a heart condition, and we review the literature and suggest the use of imaging to reduce the number of emergency procedures.

Introduction A nasolabial cyst is an ectodermal development cyst. It presents as a fullness of canine fossa, nasal ala, or vestibule of the nose. It is rare and usually small. Treatment consists of complete surgical excision or transnasal endoscopic marsupialization. Objective To describe a giant nasolabial cyst case treated using Neumann incision. Case Report A 37-year-old man was referred to the otolaryngology department with nasal obstruction and nasal deformity. Computed tomography showed a nasal cystic lesion 4 × 4.5 × 5 cm wide. Surgical excision using Neumann incision was performed. Discussion Neumann incision provides wide access to the nasal cavity and may be useful in nasolabial cyst treatment.

Introduction: The neuroendocrine carcinomas may emerge in almost every body organ, though found more often on the gastrointestinal tract and respiratory system. Nasal cavity and paranasal sinus are rarely affected. The presentation age varies from 26 to 86 years old, with no sex preference. Little is known about the predisposing factors, including smoking. The treatment includes the surgical removal of the lesion, chemotherapy, and radiotherapy. Objective: This study aims to report a case of neuroendocrine carcinoma of the paranasal sinus. Resumed Report: A 38-year-old male patient presented left nasal obstruction, pain on the left maxillary sinus, and thick rhinorrhea for 2 months. The nasofibroscopy showed a vegetant-like lesion at the middle meatus of the left nasal fossa. Computed tomography and magnetic resonance imaging of the paranasal sinus was asked and showed that the lesion had a density like the soft tissue in the left nasal fossa and it presented a skull base invasion, front and medium, with ethmoid roof and nasal septus erosion. The diagnosis was because of pathological anatomy and immunohistochemistry. The treatment included tumor resection, chemotherapy, and radiotherapy. Conclusion: Neuroendocrine tumors of the paranasal sinus are recurrent and locally destructive. A multifatorial treatment approach is needed, and even then the local and distant recurrence is very high. Associated surgery, chemotherapy, and radiotherapy are the treatment option and is associated with a better control of the disease and survival rates. Keywords: Neuroendocrine carcinoma, carcinoid tumor, aggressive.