Abstract
A case of malignant pleomorphic adenoma of the palatine tonsil is reported. A 58-year-old woman had complained of abnormal sensation of the throat. Physical examination revealed that the left palatine tonsil was enlarged and coated with a white film. Histological examination of the biopsy specimen revealed the tonsillar tumor to be malignant pleomorphic adenoma. A tonsillectomy involving the surrounding tissue with elective neck dissection of the left side was performed using CO2 laser. It was considered that the tumor originated from the minor salivary glands in the pharyngeal mucosa and extended into the palatine tonsil. The patient remains in favorable condition at this time, 12 months after surgical treatment.
