Extratemporal Malignant Nerve Sheath Tumor of Facial Nerve with Coexistent Intratemporal Neurofibroma Mimicking Malignant Intratemporal Extension

<div>MPNST of the right postauricular region. (a, b) Axial T1- and T2-weighted MRI undertaken at the previous hospital shows a right postauricular elliptical tumor (arrow). (c) Photomicrograph of the resected tumor which is composed of spindle cells disposed in sweeping fascicles. The mitotic figures present are characteristic of malignancy (arrows) (Haematoxylin and Eosin stain; original magnification ×200). (d) Photomicrograph at higher power showing mitosis (arrow) (Haematoxylin and Eosin stain; original magnification ×600).</div>

Case Reports in Otolaryngology

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Figure 1

Figure 1: Extratemporal Malignant Nerve Sheath Tumor of Facial Nerve with Coexistent Intratemporal Neurofibroma Mimicking Malignant Intratemporal Extension 

Figure 1 | Extratemporal Malignant Nerve Sheath Tumor of Facial Nerve with Coexistent Intratemporal Neurofibroma Mimicking Malignant Intratemporal Extension 