Magnetic resonance imaging evidence for perineural spread of endometriosis to the lumbosacral plexus: report of 2 cases

Sciatic nerve endometriosis (EM) is a rare presentation of retroperitoneal EM. The authors present 2 cases of catamenial sciatica diagnosed as sciatic nerve EM. They propose that both cases can be explained by perineural spread of EM from the uterus to the sacral plexus along the pelvic autonomie ne...

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Veröffentlicht in:Neurosurgical focus 2015-09, Vol.39 (3), p.E15-E15
Hauptverfasser: Siquara de Sousa, Ana C, Capek, Stepan, Howe, Benjamin M, Jentoft, Mark E, Amrami, Kimberly K, Spinner, Robert J
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container_issue 3
container_start_page E15
container_title Neurosurgical focus
container_volume 39
creator Siquara de Sousa, Ana C
Capek, Stepan
Howe, Benjamin M
Jentoft, Mark E
Amrami, Kimberly K
Spinner, Robert J
description Sciatic nerve endometriosis (EM) is a rare presentation of retroperitoneal EM. The authors present 2 cases of catamenial sciatica diagnosed as sciatic nerve EM. They propose that both cases can be explained by perineural spread of EM from the uterus to the sacral plexus along the pelvic autonomie nerves and then further distally to the sciatic nerve or proximally to the spinal nerves. This explanation is supported by MRI evidence in both cases. As a proof of concept, the authors retrieved and analyzed the original MRI studies of a case reported in the literature and found a similar pattern of spread. They believe that the imaging evidence of their institutional cases together with the outside case is a very compelling indication for perineural spread as a mechanism of EM of the nerve.
doi_str_mv 10.3171/2015.6.FOCUS15208
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subjects Adult
Electromyography
Endometriosis - pathology
Female
Humans
Image Processing, Computer-Assisted
Lumbosacral Plexus - diagnostic imaging
Lumbosacral Plexus - pathology
Magnetic Resonance Imaging
Middle Aged
Neurologic Examination
Tomography, X-Ray Computed
title Magnetic resonance imaging evidence for perineural spread of endometriosis to the lumbosacral plexus: report of 2 cases
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