顎下部 low-grade fibromyxoid sarcoma 例

We report a case of low-grade fibromyxoid sarcoma of the submandibular region. An 83-year-old woman presented with a mass in her left submandibular region that had been enlarging for 3 months. At first, it seemed to be lymphadenitis and we observed it for several months. But it enlarged and grew to be painfull. CT imaging revealed a tumor outside the submandibular gland. We resected the mass and it was subsequently diagnosed as a low-grade fibromyxoid sarcoma, a very rare tumor.