Giant parotid pleomorphic adenoma: one case report

Pleomorphic adenoma is the most common type of salivary gland tumors. However, giant parotid pleomorphic adenoma with a weight over 1 kg is extremely rare. In this article, the diagnosis and treatment of one 71-year-old male patient with giant parotid pleomorphic adenoma were reported. The patient was admitted to hospital due to an enlarged mass in the left subauricular area for 35 years. After complete relevant examinations, the patient underwent exploratory resection of the mass. Intraoperatively, a mass of 160 mm×130 mm×140 mm in size with a weight of 1.55 kg was observed. The postoperative pathological results were consistent with the diagnosis of giant parotid pleomorphic adenoma. During 6-month follow-up, the left maxillofacial appearance of the patient was significantly improved, and no symptoms of nerve injury were reported. The diagnosis and treatment of this case prompt that extensive attention should be paid to avoid surrounding neurovascular injury during the operation. Clinicians should strengthen the understanding of this disease and improve the level of diagnosis and treatment.