Abstract
We report a case of giant pleomorphic adenoma of the left parotid gland. The patient was a 72-year-old female who had noticed the mass 20 years ago. At that time she visited a hospital and was recommended for surgical treatment. The tumor was not treated becouse of fear of the surgery. The tumor gradually enlarged. She suddenly noticed pain and visited our hospital. Initial examination revealed a giant tumor in the left parotid gland without facial palsy. The giant tumor was extirpated under general anesthesia. The tumor originated from the deep lobe of the parotid gland. Histopathologically, the tumor was diagnosed as pleomorphic adenoma without evidence of malignancy. The extirpated tumor was 14cm in diameter and weighed 720g. Postoperatively, palsy of the mandibular marginal branch of the facial nerve occurred. The palsy improved within 3 months. There has been no recurrence for 8 months.