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Cyclic sciatica. A manifestation of compression of the sciatic nerve by endometriosis. A case report
R Dhôte1, L Tudoret, C Bachmeyer
1Service de Médecine Interne, Hôpital Cochin, Paris, France.
Study Design:
A case of cyclic sciatica secondary to ovarian cyst endometriosis is presented.
Objectives:
To report the clinical description and magnetic resonance imaging aspects of cyclic sciatica.
Summary Of Background Data:
Endometriosis of the sciatic nerve is rare, but must be included in the differential diagnosis of sciatic mononeuropathies.
Methods:
The authors report a new case of a woman whose cyclic sciatica was caused by an ovarian cystic endometriosis lesion.
Results:
Magnetic resonance imaging was described as hyper- and hypointense on T1-weighted sequences, and hyperintense on T2-weighted sequences at the sciatic notch.
Conclusion:
Magnetic resonance imaging may permit a specific diagnosis of this unusual cause of sciatica by showing a hemorrhagic mass in the region of the sciatic nerve. Early recognition is necessary to prevent permanent damage to the sciatic nerve.