Uterus-like Mass of the Conus Medullaris with Associated Tethered Cord

A Rougier, Rougier A, Alain Rougier, Vital C, C Vital, Philippe Caillaud, P Caillaud, Caillaud P
Neurosurgery · 1993 · vol. 33(2) , pp. 328–331 · doi:10.1097/00006123-199308000-00025 · PMID:8367059 · W2066036956
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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-09 ⓘ

This case report details a patient with a uterus-like mass of Müllerian origin within the conus medullaris, accompanied by a functional endometrium and associated spinal dysraphism.

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⚙ AI-generated deep summary by qwen3.7-flash, 2026-08-20 · read from full text ⓘ

This case report describes a rare congenital anomaly involving a uterus-like mass of Müllerian origin located within the conus medullaris, accompanied by spinal dysraphism. The patient presented with a low-lying conus medullaris, a subcutaneous lipoma, and a sinus tract connecting the cul-de-sac to the lipoma, which led to hemorrhage from functional endometrial tissue within the ectopic uterine structure. The authors emphasize that this mature ectopic tissue must be distinguished from teratomas and endometriosis during diagnosis. Relevance to endometriosis: listed as a differential diagnosis condition, though the paper's main focus is a rare congenital neural tube defect mimicking uterine anatomy.

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Abstract

A patient with a mass lesion of Müllerian origin associated with a spinal dysraphism is reported. The mass lesion was a genuine uterine formation, and a hemorrhage arose from a functional endometrium. A spinal dysraphism was associated, including a low-lying conus medullaris, a subcutaneous lipoma, and a sinus between the cul-de-sac and the lipoma. This ectopic and mature tissue may be differentiated from teratoma and endometriosis.
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Case Report Uterus-like Mass of the Conus Medullaris with Associated Tethered Cord - Alain Rougier - Claude Vital - Philippe Caillaud Neurosurgery 33(2):p 328-331, August 1993. A PATIENT WITH a mass lesion of Müllerian origin associated with a spinal dysraphism is reported. The mass lesion was a genuine uterine formation, and a hemorrhage arose from a functional endometrium. A spinal dysraphism was associated, including a low-lying conus medullaris, a subcutaneous lipoma, and a sinus between the cul-de-sac and the lipoma. This ectopic and mature tissue may be differentiated from teratoma and endometriosis. Copyright © by the Congress of Neurological Surgeons

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Condition tags

endometriosis

MeSH descriptors

Choristoma Spina Bifida Occulta Spinal Cord Neoplasms Uterus Adolescent Choristoma Choristoma Choristoma Female Humans Laminectomy Magnetic Resonance Imaging Neurologic Examination Spina Bifida Occulta Spina Bifida Occulta Spina Bifida Occulta Spinal Cord Spinal Cord Spinal Cord Neoplasms Spinal Cord Neoplasms

Citation neighborhood

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References (20)

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