Intramedullary Endometriosis of the Conus Medullaris: Case Report

Amit Agrawal, Shetty BJ, Bellore J P Shetty, Makannavar JH, Jagadeesh H. Makannavar, Lathika Shetty, Shetty L, Jayaprakash Shetty, Shetty J, Shetty V, Vikram Shetty
Neurosurgery · 2006 · vol. 59(2) , pp. E428 · doi:10.1227/01.neu.0000223375.23617.dc · PMID:16883155 · W2006185235
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-08 ⓘ

This report details a case of intramedullary endometriosis in the conus medullaris, presenting with acute hemorrhage and neurological deterioration, and reviews literature on this rare condition.

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⚙ AI-generated deep summary by qwen3.7-flash, 2026-08-18 · read from full text ⓘ

This case report describes a rare instance of intramedullary endometriosis affecting the conus medullaris in a patient who experienced acute neurological deterioration due to hemorrhage. Diagnostic magnetic resonance imaging identified a mass lesion at the L1–L2 level, which was surgically managed via emergency laminectomy and microdecompression. Histological and immunohistochemical analyses confirmed the diagnosis, highlighting that such lesions can cause periodic neurological symptoms in women. This paper is centrally about endometriosis — specifically the extremely rare presentation of intraspinal involvement within the spinal canal.

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Abstract

OBJECTIVE: Intraspinal endometriosis is an extremely rare condition with characteristic symptoms, including lower back pain that increases in severity during each menstrual cycle. METHODS: Here, we report a case of endometriosis involving the conus cauda region. This patient presented with acute deterioration secondary to hemorrhage. We also review the relevant literature. RESULTS: Magnetic resonance imaging scans of the dorsolumbar region showed a mass lesion within the spinal canal at the L1-L2 level with evidence of acute hemorrhage. The patient underwent an emergency D12-L2 laminectomy and microdecompression of the lesion. The histological and immunohistochemical features were characteristic of intraspinal endometriosis. CONCLUSION: Intraspinal endometriosis must be recognized as a potential cause of periodic neurological signs and symptoms in young and middle-aged women.
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Objective

Intraspinal endometriosis is an extremely rare condition with characteristic symptoms, including lower back pain that increases in severity during each menstrual cycle.

Methods

Here, we report a case of endometriosis involving the conus cauda region. This patient presented with acute deterioration secondary to hemorrhage. We also review the relevant literature.

Results

Magnetic resonance imaging scans of the dorsolumbar region showed a mass lesion within the spinal canal at the L1–L2 level with evidence of acute hemorrhage. The patient underwent an emergency D12–L2 laminectomy and microdecompression of the lesion. The histological and immunohistochemical features were characteristic of intraspinal endometriosis.

Conclusion

Intraspinal endometriosis must be recognized as a potential cause of periodic neurological signs and symptoms in young and middle-aged women.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Hematoma, Epidural, Spinal Spinal Canal Spinal Cord Spinal Cord Compression Acute Disease Adult Biomarkers, Tumor Biomarkers, Tumor Biomarkers, Tumor Decompression, Surgical Endometriosis Endometriosis Endometriosis Endometrium Endometrium Endometrium Endometrium Female Hematoma, Epidural, Spinal

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

References (13)

Cited by (14)

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