Parotidectomy

Parotid cancer is a malignant tumor that occurs in the parotid gland and belongs to a type of malignant tumor with the highest incidence in salivary gland cancer. Clinically more than unintentionally or during experience, there are painless masses that grow slowly below or behind the earlobe, mostly nodular, flat or slightly rounded, with varying hardness and activity, and the size is generally 3 -5 cm, with capsule, long history, except for local soreness, no facial nerve damage, regional lymphadenopathy and other discomforts. Malignant tumors of the parotid gland are rare, mostly mixed malignant tumors, followed by mucoepidermoid tumors, adenocarcinomas, acinar cell carcinomas, and papillary cystadenocarcinomas. The clinical manifestations are short course of disease, rapid growth, pain in the lesions, numbness, hard mass, adhesion to deep tissues, poor mobility, difficulty in opening mouths, partial patients with partial or full facial nerve paralysis, infiltration of skin can rupture, wound Unhealed, stench secretion, cervical lymph node metastasis or distant metastasis (lung, bone, liver, brain, etc.) can occur. The cause of this disease in modern medicine is not yet clear. Some scholars believe that it is related to the virus or infection. The clinical diagnosis is mainly based on medical history, symptoms, systemic and local examinations; X-ray imaging of the salivary glands shows that the main and branch ducts are squeezed and twisted, dilated, stenotic intermittent, and interrupted; the acinus is poorly filled or defective, or the contrast medium overflows in a sheet shape; When the main duct was infarcted, all the branch ducts and glands were not visualized. Needle aspiration of living tissue or frozen tissue biopsy during pathological examination can confirm the diagnosis. Modern medicine mainly uses surgical resection for the treatment of this disease. The 5-year survival rate after parotid cancer surgery is reported to be around 95%. When the patient's malignant tumor has invaded the surrounding tissue and residual cancer remains at the margin after surgery, supplementary radiation therapy should be considered. This disease belongs to the categories of "bumps", "sputum" and "lithothrax" in Chinese medicine. Chinese medicine believes that the disease is caused by the contents of heat poisoning, stasis of qi and blood, and accumulation of phlegm and dampness.

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