Magnetic Resonance Imaging Appearance of Schwannomas from Head to Toe: A Pictorial Review.
Jamie Crist, Jacob R Hodge, Matthew Frick, Fiona P Leung, Eugene Hsu, Ming Tye Gi, Sudhakar K Venkatesh
Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA, 1South West Radiology, Liverpool, NSW Department of Radiology, St. Vincent's Hospital, Sydney, AustraliaDepartment of Diagnostic Imaging, National University Hospital, NUHS, Singapore
Date of Submission: 27-May-2017, Date of Acceptance: 21-Aug-2017, Date of Web Publication: 03-Oct-2017.
Schwannomas are benign soft-tissue tumors that arise from peripheral nerve sheaths throughout the body and are commonly encountered in patients with neurofibromatosis Type 2. The vast majority of schwannomas are benign, with rare cases of malignant transformation reported. In this pictorial review, we discuss the magnetic resonance imaging (MRI) appearance of schwannomas by demonstrating a collection of tumors from different parts of the body that exhibit similar MRI characteristics. We review strategies to distinguish schwannomas from malignant soft-tissue tumors while exploring the anatomic and histologic origins of these tumors to discuss how this correlates with their imaging findings. Familiarity with the MRI appearance of schwannomas can help aid in the differential diagnosis of soft-tissue masses, especially in unexpected locations.
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