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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2015; 25(04): 453-458
DOI: 10.4103/0971-3026.169447
Neuroradiology

Telltale signs of peripheral neurogenic tumors on magnetic resonance imaging

Chandan Kakkar
Department of Radiodiagnosis and Imaging, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
,
Chandrakant M Shetty
Department of Radiodiagnosis, Asian Heart Institute, Mumbai, Maharashtra, India
,
Prakashini Koteshwara
Department of Radiodiagnosis and Imaging, Kasturba Medical College and Hospital, Manipal, Karnataka, India
,
Surabhi Bajpai
Department of Abdominal Imaging, Massachusetts General Hospital, Boston, India
› Author Affiliations Financial support and sponsorship Nil.
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Abstract

Peripheral nerve sheath tumors are categorized into benign and malignant forms, comprising of neurofibroma and schwannoma in the benign category and malignant peripheral nerve sheath tumors in the malignant category. Magnetic resonance imaging plays an important role in the diagnosis of these lesions. The various imaging features and signs that help to identify and characterize a nerve sheath tumor are, distribution of the tumor along a major nerve, an entering or exiting nerve sign, target sign, a fascicular sign and a split-fat sign.

Keywords

Magnetic resonance imaging - neurofibroma - schwannoma - target sign


Publication History

Article published online:
30 July 2021

© 2015. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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