Abstract
Primary liposarcoma is extremely rare in the oral cavity and usually involves the thigh, retroperitoneum, or inguinal region. We describe a 45-year-old man who presented with a soft painless mass measuring 18×15×15mm in the right margin of the tongue. MR images demonstrated a well-defined solitary mass in the right margin of the tongue. T 1-weighted MR imaging showed low signal intensity. T 2-weighted MR imaging and fat-suppressed T 2-weighted MR imaging showed homogenous and high signal intensity. The pathological diagnosis of a frozen section specimen was myxoma or myxofibroma. The tumor was considered benignand resected with the patient under general anesthesia. However, the final pathological diagnosis of the tumor was liposarcoma, myxoid type, according to the WHO classification of 1969. Onemonth later, we performed an additional glossectomy as recommended by our pathologist. There were no signs of recurrence at 3-year follow-up.
