Localized hypertrophic neuropathy of the sciatic nerve in children: MRI findings. - Archive ouverte HAL Access content directly
Journal Articles Pediatric Radiology Year : 2012

Localized hypertrophic neuropathy of the sciatic nerve in children: MRI findings.

(1) , (1) , (1) , (1) , (2) , (3) , (4) , (1) , (1, 5)
1
2
3
4
5

Abstract

BACKGROUND: Localized hypertrophic neuropathy (LHN) of the sciatic nerve in children is a rare condition characterized by a painless neurological deficit in the sciatic nerve territory. OBJECTIVE: To demonstrate the role of MRI using a specific protocol and describe the primary findings in LHN. MATERIALS AND METHODS: Imaging in four children (age 2 years to 12 years) is presented. All children presented with lower limb asymmetry. Three had a steppage gait. LHN was confirmed by electrophysiological studies and by MRI of the whole sciatic nerve with a dedicated protocol covering the lumbar spine and the lower limb. RESULTS: There were four direct MRI findings: (1) linear and focal hypertrophy with progressive enlargement of a peripheral nerve or plexus diameter, (2) abnormal hyperintensity of the nerve on T2-weighted images, (3) preserved fascicular configuration, and (4) variable enhancement after intravenous gadolinium administration. In addition there were atrophy and fatty infiltration of innervated muscles. MRI was helpful for determining the extent of lesions and in excluding peripheral nerve compression or tumour. CONCLUSION: MRI of the whole sciatic nerve is the method of choice for diagnosing LHN of the sciatic nerve.

Dates and versions

inserm-00845312 , version 1 (16-07-2013)

Identifiers

Cite

Adrien Roux, Catherine Tréguier, Bertrand Bruneau, Franck Marin, Laurent Riffaud, et al.. Localized hypertrophic neuropathy of the sciatic nerve in children: MRI findings.. Pediatric Radiology, 2012, 42 (8), pp.952-8. ⟨10.1007/s00247-012-2418-y⟩. ⟨inserm-00845312⟩
248 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More