Sacrococcygeal extradural ependymoma.

Area of Science:

• Neuro-oncology
• Spinal Surgery
• Pathology

Background:

• Ependymomas are glial tumors that typically arise within the central nervous system.
• Myxopapillary ependymomas (MPEs) are a distinct subtype, most commonly found in the filum terminale of the spinal cord.
• Extradural ependymomas are exceptionally rare, particularly in the lumbosacral region.

Observation:

• A case of lumbosacral extradural myxopapillary ependymoma is presented.
• Detailed clinical presentation, including neurological deficits and imaging findings, is described.
• Embryologic origins and potential mechanisms for extradural extension are discussed.

Findings:

• The reported lesion exhibited characteristics of myxopapillary ependymoma in an unusual extradural location.
• Diagnostic challenges and the importance of histopathological confirmation are highlighted.
• Treatment strategies, including surgical resection and adjuvant therapies, are reviewed.

Implications:

• This case expands the known spectrum of ependymoma locations and presentations.
• Understanding the embryologic basis may inform future diagnostic and therapeutic approaches for rare spinal tumors.
• Highlights the need for considering rare differential diagnoses in extradural spinal lesions.