Types and characteristics of benign tumors of the parotid gland Most of them are mixed tumors (painless, slow-growing, slightly tough) and adenolymphomas (painless, slow-growing, slightly tough masses behind the angle of the lower jaw, mostly seen in patients who have smoked a lot for a long time). Diagnosis of benign parotid tumor Based on medical history, physical signs and ultrasound of parotid gland, most patients can be clearly diagnosed before surgery, while some suspicious patients can be diagnosed by intraoperative exploration and intraoperative frozen pathology. Treatment of benign parotid tumors Surgery is the main measure for treating benign parotid tumors. For benign tumors, postoperative complications should be reduced under the condition of ensuring complete resection of the tumor. Prevention of postoperative complications 1. Surgical incision scars: Small incisions are made in front of the ear – under the earlobe – behind the ear, the incisions are hidden in the skin lines, absorbable sutures are applied and cosmetic techniques are used for suturing, and there are no obvious scars after postoperative healing. 2.Facial palsy: the facial nerve monitor is routinely applied and monitored in real time during surgery to reveal and protect the facial nerve and avoid accidental injury, and the chance of postoperative facial palsy is very low. 3.Facial deformity: The residual parotid tissue is used to fill the surgical cavity defect to avoid postoperative facial depression deformity. 4. Parotid leakage: suture the broken end of the parotid gland during surgery, dress the wound with pressure, and avoid eating spicy and sour food after surgery.