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Case Reports
. 2017 Aug 2;12(4):821-823.
doi: 10.1016/j.radcr.2017.06.010. eCollection 2017 Dec.

Acetabular paralabral cyst causing compression of the sciatic nerve

Caoimhe Byrne  1 , Sharon Whitty  2 , Emma Stanley  3 , Abdullah Alkhayat  1 , Stephen J Eustace  1   3   4 , Eoin C Kavanagh  1   3   4
Affiliations
Case Reports

Acetabular paralabral cyst causing compression of the sciatic nerve

Caoimhe Byrne et al. Radiol Case Rep. .

Abstract

Acetabular paralabral cysts are common. They vary in their clinical presentation and may be asymptomatic or cause pain and restriction at the hip joint. In rare instances they may cause symptoms by compressing local neurovascular structures. We report a case of symptomatic compression of the sciatic nerve by a posteriorly displaced acetabular paralabral cyst.

Keywords: Acetabulum; MRI; Paralabral cyst; Sciatic nerve; Sciatica.

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Figures

Fig. 1
Fig. 1
Axial T2-weighted image showing a lobulated 2-cm hyperintense structure arising from the posterior acetabular labrum (arrows) consistent with a paralabral cyst. Arrowheads show the adjacent left sciatic nerve.
Fig. 2
Fig. 2
(A) Coronal short tau inversion recovery image showing hyperintensity of the left sciatic nerve (arrows) and (B) coronal maximal intensity projection image showing lobulated hyperintense paralabral cyst (arrow) insinuating into the sciatic nerve.
See this image and copyright information in PMC

References

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