A rare case of malignant triton tumor in the cerebellopontine angle

Abstract

Abstract Malignant triton tumor (MTT) is defined as malignant peripheral nerve sheath tumor with rhabdomyoblastic differentiation. Intracranial MTT is extremely rare, and only four cases have been reported in the literature. Here, we report a case of MTT occurring in the cerebellopontine angle, and describe its histopathological characteristics, immunohistochemical features, and prognosis. Virtual slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1336227313684480

Keywords

• Malignant triton tumor
• Malignant peripheral nerve sheath tumor
• S-100 protein
• Myoglobin