Introduction: Endometriosis affecting the sciatic nerve is extremely uncommon. Its main symptom is catamenial sciatica but it can result in neuropathy. The diagnosis is usually delayed for years. Our objective is to communicate our experience in the diagnosis, management and treatment of this pathology by presenting two patients. Methods: Retrospective revision of medical charts of all sciatic endometriosis cases treated in the Endometriosis Unit of the University Hospital, La Paz, Spain. Results: Two nulliparous patients 35 and 39 years old, with unilateral sciatica related to sciatic nerve endometriosis are presented. The lag time between the onset of symptoms and diagnosis was 8 and 5 years. Both patients had problems with locomotion and muscle atrophy, so laparoscopic neurolysis was performed with success in pain control but not total recovery of deambulation defect.
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