Malignant triton tumor of the supraclavicular region arising after radiotherapy

Malignant triton tumor (MTT) is a relatively rare, aggressive tumor comprised of both malignant schwannoma cells and malignant rhabdomyoblasts. Only three cases of MTT which arose after radiation therapy were reported in the literature. We presented an additional case of MTT arising after radiotherapy and disscussed its clinical and pathological characteristics.