Otorhinolaryngology-Head and Neck Surgery is a key discipline of Hangzhou Class A. Head and Neck Tumor Treatment is a traditional advantage of the department. On this basis, Head and Neck Surgery and Head and Neck Tumor Surgery Center were established in 2004. Integrating maxillofacial surgery, combined with radiotherapy, chemotherapy, imaging, pathology and plastic surgery, the department specializes in clinical diagnosis and treatment and basic research in head and neck. In order to improve the therapeutic effect of head and neck tumors, the center has studied the more advanced head and neck treatment plans from abroad, and firstly put forward the concept of MDT (Multidisciplinary Collaborative Team) for diagnosis and treatment of head and neck tumors in the hospital. Before the treatment, we unite with the Pathology, Imaging, Tumor Radiotherapy, Ophthalmology, Plastic Surgery and other related departments, and then, after the discussion and the comprehensive opinions from multiple departments, we formulate the standardized and individualized treatment plan for the patients. After discussing and integrating the opinions of multiple departments, we formulate standardized and individualized treatment plans for patients, which improves the survival quality of patients while enhancing the effect of tumor treatment. Head and Neck Cancer Surgery Center follows the concepts of standardization, synthesis, individualization and minimally invasive in the treatment of head and neck tumors. I. Endonasal endoscopic surgery for nasal cavity and sinus tumors Nasal cavity and sinus tumor tumors, due to the complex anatomical structure of the tumor and its close relationship with the surrounding tissues, the traditional surgery requires partial or total resection of the maxilla or even enucleation of the eyeballs because the tumor margins can not be exposed and accurately judged during the surgery, although this type of surgery can theoretically increase the resection of the tumor, it has not significantly reduced the recurrence rate of the tumor in clinical practice. The recurrence rate of the tumor, and the deformity of the face after surgery is a serious blow to the patient’s psychology, which seriously affects the quality of their survival. Our department introduced nasal endoscopic surgery technology earlier in China and took the lead in using otorhinolaryngology surgical impact navigation system, which can more accurately judge the scope of tumor and resect the tumor more precisely during the surgery, and deal with surgical wounds with low-temperature plasma technology, which reduces the surgical trauma and postoperative complications as much as possible, and improves the postoperative social regression rate of the patients while improving the effect of the tumor treatment and lowering the recurrence rate. Second, endonasal endoscopic surgery for nose and eye related tumors Anatomically, sinus and orbital are closely related, so tumors of orbital or sinus may involve the two anatomical structures at the same time. Traditionally, different departments have been “doing their own thing”, dealing only with lesions that belong to their own field, which affects the effectiveness of treatment. Recently, due to the deepening of the “MDT” concept of oncology treatment, interdepartmental cooperation has been developed for tumors involving both the orbit and the nasal sinuses. We have carried out transnasal endoscopic orbital resection of malignant tumors earlier than others in the world. After removing nasal sinus tumors using different angles of nasal endoscopic guidance, we precisely resected tumors invading into orbits or occurring in orbits through the bone wall adjacent to the orbits, preserving uninvaded ocular muscles, nerves, and other important structures, so as to preserve the shape and function of the eyes as much as possible, and to improve the quality of patient’s survival. C. Nasal endoscopic surgery for nasal skull base-related tumors The pituitary gland is located in the central part of the skull base, and for pituitary tumors that require surgical treatment, the traditional neurosurgical pathway, due to the relatively long distance, the trauma caused by the surgery and the complications occurring in the postoperative period are more obvious. Where anatomical conditions permit, resection of pituitary tumors via the pterygoid sinus under nasal endoscopy is currently a less traumatic surgical method that avoids pulling on the brain tissue, and is the direction of development for pituitary tumor surgery. We have cooperated with neurosurgery department to carry out this surgery for many years, with mature technology, certain efficacy and few postoperative complications. Rescue surgery for recurrent and advanced nasopharyngeal cancer Nasopharyngeal cancer is a common malignant tumor in otorhinolaryngology, head and neck surgery, and the first treatment is mainly radiation therapy. However, for patients with residual and recurrent disease after treatment, the current treatment methods are limited. For these patients, our department is the first in the world to adopt 3D image navigation system-guided nasal endoscopic nasopharyngeal tumor resection and treat the trauma with low-temperature plasma, which improves the resection rate of recurrent tumors, and combines with comprehensive treatment to improve the survival rate of patients. V. Minimally invasive surgery for early laryngeal cancer With the deepening of clinical and pathological research on early laryngeal cancer, as well as the use of laryngeal microscope, high-definition video screen laryngoscope, laser, low-temperature plasma, and the skillfulness of laryngeal microsurgery techniques, it becomes possible to resect early laryngeal tumors through mouth. In cooperation with famous laryngologists from the University of Giessen, Germany, our department has carried out transoral minimally invasive surgery for early laryngeal cancer, which preserves as much as possible the normal function of the larynx while completely removing laryngeal tumors, and repairs the larynx intraoperatively, so that the patient’s voice is as close to normal as possible after the operation. Resection of various types of laryngeal cancer and reconstruction of laryngeal function We are the department that carried out open surgery for laryngeal cancer in the early days in the province. After many years of efforts and development, we have been able to further improve the various surgical procedures, including partial laryngectomy+reconstruction of laryngeal function, total laryngectomy, and various types of cervical lymph node dissection for laryngeal cancers with different stages and subtypes. Especially for patients who can undergo partial laryngectomy, after resecting the tumor, we carry out reconstruction of laryngeal function by using peripheral tissues or skin flap repair, which improves the extubation rate of tracheotomy, restores the natural channel of phonation, and preserves the normal swallowing function, which improves the quality of patients’ postoperative survival to a great extent based on improving the therapeutic effect. Hypopharyngeal Cancer Surgery with Preservation of Laryngeal Function Hypopharyngeal cancer is a tumor with higher malignancy among head and neck tumors, due to its hidden primary site, non-specific early symptoms, high lymph node metastasis rate, and easy to recur and metastasize after surgery, the surgery needs to resect hypopharyngeal tumors while removing laryngeal, which will make the patients suffer from the pain of losing their articulation organs after surgery. For cancers of the posterior wall of the hypopharynx, some early stage cancers or pyriform fossa cancers that only invade one side of the larynx, we adopt hypopharyngeal cancer resection + partial posterior resection, and carry out postoperative repair of laryngeal and hypopharyngeal functions, which resects the tumors and preserves part of the laryngeal functions, and guarantees the quality of patient’s survival to the greatest extent. VIII. Maxillofacial Surgery has made great progress. We have skillfully carried out routine surgical treatments for oral and maxillofacial tumors of odontogenic, osseous, neurovascular and salivary glands in the maxillofacial region, etc. For the surgery of superficial lobe of parotid gland, we have adopted the minimally invasive parotid gland partial resection with improved personalized incision, which has reduced the scar on the face and retained the function of parotid glands to the greatest extent possible. For the treatment of various emergencies and serious illnesses of maxillofacial trauma, we have successfully performed many cases of incision and internal fixation of multiple complex fractures of the maxillofacial bones, and the full or semi-coronal incision for zygomatic arch and zygomatic, orbital, and nasal fractures has become a routine procedure, which achieves the goal of the surgery and makes the scar as much as possible hidden, and the expanded excision of the primary foci of malignant tumors of the tongue, cheeks, gingiva, and jaws has become a routine surgery, as well as the immediate cervical lymph node dissection. It has become a routine surgery. Postoperative reconstruction of head, neck and maxillofacial tumors The reconstructive surgery for soft and hard tissue defects after resection of benign and malignant tumors of the maxillofacial region has developed rapidly. In addition to reconstruction of the mandible with bone grafts of free ilium and ribs, we have carried out the application of composite flap of pectoralis major muscle and rib cage to repair the jawbone and soft tissue defects, and the repair of facial and intraoral soft tissue defects of a wide range of the chest with pectoralis major and latissimus dorsi flaps have been matured in my department. Microsurgery has been greatly developed, and we have successfully performed immediate reconstruction of the mandible with vascularized iliac bone for many times. The standardized, individualized, and minimally invasive treatment plan based on surgery is the strength of our department in treating head and neck tumors. While improving and developing the diagnostic and therapeutic protocols, we focus on the basic research of head and neck tumors, and have gradually built up a library of head and neck tumor tissues, which prepares complete research data for further in-depth study of the biological behavior of head and neck tumors, and for searching for new diagnostic and therapeutic indexes and means.