General: Salivary gland tumors account for 3-4% of head and neck tumors Parotid tumors account for 80% of salivary gland tumors and 85% of parotid tumors are benign Parotid tumors are usually of three types: benign tumors, tumor-like status and malignant tumors Diagnosis: Fine needle aspiration cytology (FNAB) is simple and easy to perform and has become a more reliable method for the diagnosis of benign and malignant salivary gland tumors. FNAB can not only identify benign and malignant tumors of the salivary gland (its accuracy rate is as high as about 90%), but is also helpful in the diagnosis of non-neoplastic salivary gland lesions. The incidence of tumor cell implantation during puncture has been reported in the literature to be zero and local incisional biopsy has almost been abandoned. Local incisional biopsy is prone to tumor rupture, local infection, and tumor recurrence. CT and MRI examinations can determine the extent of the lesion and provide preliminary characterization of the tumor, but cannot confirm the diagnosis. For most patients with benign parotid tumors, CT and MRI increase the financial burden of patients and do not provide significant guidance for treatment planning. The superficial lobe of the parotid gland is removed to preserve the facial nerve. If the deep lobe of the parotid gland is invaded or involved, all parotid tissue should be removed while preserving the function of the facial nerve as much as possible because the envelope of pleomorphic adenoma is incomplete and the resection should include enough normal glandular tissue boundaries. The data show that recurrence is rare with enucleation alone, but routine regional parotidectomy is considered the safest and most effective treatment. A typical case done by me. A small incision was made to remove the parotid mass, and the facial nerve was dissected and protected (the mandibular marginal branch of the facial nerve is shown by the black arrow in the figure). Postoperative complications and prevention Early complications: facial nerve weakness or facial palsy; bleeding (complete intraoperative hemostasis and pressure bandaging); hematoma or seroma (hemostasis and negative pressure drainage); salivary cyst (aspiration, compression, anti-infection); flap necrosis (subcutaneous peeling, curved incision, avoiding intraoperative damage to the free flap and keeping it moist if possible. It can be cured by drug exchange, flap transfer and skin grafting); salivary fistula (do not eat acidic things, application of anticholinergic drugs and pressure bandaging); infection (antibiotics, incision and drainage); otitis externa (symptomatic treatment); auricular skin numbness (nerve nutrition, observation). Late complications: facial deformity, scar formation and Frey’s syndrome (6 months).