Introduction: Reconstruction of the nose and cheek after oncologic resections or severe infections resulting in facial necrosis is challenging.Sometimes different facial regions must be repaired, and different flaps must be used to achieve a good functional and aesthetic result.Local flaps and in cases of extensive defects, regional flaps are an excellent option for the reconstruction.

Introduction: Malignant neural sheath tumors located in the head and neck region are very rare. Surgical treatment if possible is the best option, trying to obtain wide resection margins free of tumor. Objects:To determine the incidence of malignant tumors of neural histology, in relation to nerve tumors originating in the head and neck and description of two clinical cases. Methods:A retrospective and descriptive study was carried out by reviewing the electronic medical records of all patients who were diagnosed and treated for neural histology tumors originating in the head and neck, between March 1998 and December 2021.Results: Eighteen patients were treated for nerve tumors originating in the head and neck. The benign tumors of neural origin were located in the nasal cavity and paranasal sinuses (6/18) and in the neck (10/18). Four originated from the facial nerve in the parotid, three from the cervical sympathetic nerve in the retro styloid carotid space, one in the submaxillary region, and two in the supraclavicular fossa.The incidence of malignant nerve tumors was 11.11% (2/18). Conclusions:The incidence of malignant neural sheath tumors in our study was 11.11%. Most neural sheath tumors are benign and can cause functional alterations due to compression of the nerve of origin or adjacent structures, but when the neoplasm grows rapidly malignancy should be suspected. The main treatment is surgery trying to obtain wide tumor-free margins.

Purpose: Melanomas are malignant tumors that have a poor prognosis and surgical treatment is the best option when they are resectable.In this study we determined the incidence and survival what we achieved in our population of patients treated for melanomas of the nasal cavity and paranasal sinuses. Material and methods:The medical records of all patients diagnosed with rhinosinusal malignant tumors at the hospital Italiano of Buenos Aires from March 1999 to December 2020 were reviewed.Patients with melanomas were selected y and we determine its incidence within malignant rhinosinusal tumors. Clinical characteristics, location, type of treatment indicated, and results were analyzed.Results: Eight patients had melanomas, five located in the paranasal sinuses, two in the nasal cavity and one in nasal cavity and maxillary sinus.The incidence of melanomas in our population of patients with rhinosinusal malignant tumors was 11.11%.Three patients were treated with surgery and radiotherapy and three with surgery only.Two were treated with palliative criteria.In the six patients treated with curative intent, the local control and specific survival were 83.33%, and 66.66% respectively.The average follow up time was 30.99 months.Conclusions: The incidence of melanomas in our population of patients with rhinosinusal malignancies was 11.11%.In patients treated with curative intention, the local control rate was 83.33%, and disease-free survival was 66.66%.The more frequently failure pattern was the appearance of distant metastases.Endonasal surgery with endoscopes alone or associated with an external approach facilitated oncological resection.