Giant Lipomatosis of the Sciatic Nerve: Unique Magnetic Resonance Imaging Findings

Lipomatosis of the nerve, also known as fibrolipomatous hamartoma, is characterized by the infiltration of the nerve by fibro-fatty tissue. The affected nerve becomes thicker, and it simulates a mass lesion. Lipomatosis usually affects the median nerve and lipomatosis of the sciatic nerve is extreme...

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Bibliographic Details
Published inIranian journal of radiology Vol. 13; no. 2; p. e20963
Main Authors Sarp, Ali Firat, Pekcevik, Yeliz
Format Journal Article
LanguageEnglish
Published Iran Kowsar 01.04.2016
Subjects
Neuroradiology
Magnetic Resonance Imaging
Lipomatosis
Sciatic Nerve
Diffusion Magnetic Resonance Imaging
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Summary:Lipomatosis of the nerve, also known as fibrolipomatous hamartoma, is characterized by the infiltration of the nerve by fibro-fatty tissue. The affected nerve becomes thicker, and it simulates a mass lesion. Lipomatosis usually affects the median nerve and lipomatosis of the sciatic nerve is extremely rare. Magnetic resonance imaging (MRI) is the key to diagnosis, and it is usually pathognomonic. In this report, MRI and diffusion-weighted MRI findings of a case of a giant sciatic nerve lipomatosis without macrodactyly are presented. The MRI findings are unique, and awareness of the MRI features of this rare soft tissue mass may prevent unnecessary biopsies and surgeries.
ISSN:1735-1065
2008-2711
DOI:10.5812/iranjradiol.20963