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Case Report: Metastasis of a Trigeminal Malignant Peripheral Nerve Sheath Tumor to the Corpus Callosum
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Case Report: Metastasis of a Trigeminal Malignant Peripheral Nerve Sheath Tumor to the Corpus Callosum
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Journal Article
Case Report: Metastasis of a Trigeminal Malignant Peripheral Nerve Sheath Tumor to the Corpus Callosum
2019
Overview
Abstract
BACKGROUND AND IMPORTANCE
Malignant peripheral nerve sheath tumors (MPNST) are relatively rare tumors of peripheral nerves that are notable for their locally aggressive nature, ability to metastasize, poor prognosis, and association with Neurofibromatosis type I. We present the case of a patient with a trigeminal nerve MPNST who developed an unusual metastasis to the corpus callosum, in the absence of any other central nervous system or systemic metastatic disease. We review the pathology and presentation of MPNST.
CLINICAL PRESENTATION
A 53-yr-old woman presented with a 1-yr history of paroxysmal facial pain and dysesthesias in the right V1 and V2 distributions of the trigeminal nerve. She was initially diagnosed with trigeminal neuralgia although further imaging showed a cavernous sinus mass extending along the trigeminal nerve. She later developed an isolated lesion in the corpus callosum that was biopsied and consistent with MPNST.
CONCLUSION
This case reviews the pathology and aggressive nature of MPNST and demonstrates an unusual site of metastasis. Clinicians should remain aware that MPNST can metastasize to sites in the central nervous system as well as systemically. Furthermore, clinicians should have a high index of suspicion for secondary causes of trigeminal neuralgia in cases with atypical features.
Publisher
Oxford University Press,Copyright by the Congress of Neurological Surgeons,Wolters Kluwer Health, Inc
Subject
Brain Neoplasms - diagnostic imaging
/ Corpus Callosum - diagnostic imaging
/ Diseases
/ Female
/ Humans
/ Nature
/ Nerve Sheath Neoplasms - diagnostic imaging
/ Nerve Sheath Neoplasms - secondary
/ Nerve Sheath Neoplasms - surgery
/ Neurosurgical Procedures - methods
/ Peripheral Nervous System Neoplasms - diagnostic imaging
/ Peripheral Nervous System Neoplasms - surgery
/ Positron-Emission Tomography
/ Surgery
/ Trigeminal Nerve Diseases - diagnostic imaging
/ Trigeminal Nerve Diseases - surgery
/ Tumors
/ Women
