Abstract
Myxoma in the head and neck region is a relatively rare neoplasm. We encountered a case of myxoma in the submandibular region.
The patient was a 60-year-old man who visited our hospital with a slow growing mass in the neck. MRI showed a well-circumscribed mass under the platysma in the right submandibular region, visualized as a low intensity on T1-weighted images and high intensity on T2-weighted images. Liposarcoma was suspected based on the findings of fine-needle aspiration cytology. The mass was removed carefully with the surrounding fat, to avoid dissemination, under local anesthesia. Histopathological examination confirmed the diagnosis of myxoma.
Preoperative diagnosis of myxoma is difficult, and some myxomas lack a capsule and show infiltration; therefore, a high recurrence rate has been previously reported. When myxoma or mucus production is suspected, the tumor should be treated by complete excision of the tumor with a clear margin.
