A Case of Recurrent Pleomorphic Adenoma (Benign Mixed Tumor) in the Parapharyngeal Space

Abstract

The patient was a 20-year-old male who complained of swelling in submandibular area for a year. A large mass extended from the base of the skull to the upper border of the thyroid cartilage. The histopathological diagnosis was pleomorphic adenoma with peroral biopsy. Enucleation of the tumor was done through the a combination of peroral and cervical approaches. Histopathologically, components of the tumor consist of myoepithelia, stroma and a nest of squamous cell with keratinization, mitosis were infrequently encountered, and a part of the tumor capsule was very thin. The tumor seemed to arise from the mucosa of the palate. Salvage operation was done 5 years later, with a transparotid-cervical approach with mandibulotomy in the ramus mandible, which gave a wide field for surgery.