ArticleInternational medical case reports journal2023
Intramedullary Epidermoid Cyst of the Conus Medullaris: A Case Report and Literature Review.
Article in International medical case reports journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Conus medullaris epidermoid cyst: a rare cause of chronic Conus medullaris Syndrome: case report and systematic review.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Pooled it
- Intradural intramedullary epidermoid cyst in a 17-year-old male: An exceptionally rare case report and review of the literature.International journal of surgery case reports · 2024Article
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Background: Central nervous system tumors are usually located in the brain, and spinal cord tumors account for approximately 20% of central nervous system tumors. Epidermoid cysts constitute <1% of all intraspinal tumors. It consists of squamous epithelial-lined cysts containing keratin, cholesterol, and cellular granules. Epidermoid cysts can be classified as congenital, acquired, extradural, extramedullary, or intramedullary according to etiology and location. The intradural intramedullary type is uncommon. Case Presentation: An 11-year-old female patient had back pain with radiation to both lower extremities but worsened on the left side for 5 years. On neurological examination, motor strength was 3/5 for hip flexion and knee extension bilaterally and 5/5 for other key muscle groups. Contrast-enhanced lumbosacral magnetic resonance imaging (MRI) revealed T1 hypointense and T2 hyperintense lesions in the L2-L4 intramedullary conus and cauda equina. Laminectomy and near total resection were done, and histopathological examination revealed an epidermoid cyst. On the third postoperative day, the patient was discharged with completely resolved back pain and an improvement in lower extremity motor power. At monthly follow-up visits for a further 6 months, her back pain and weakness completely resolved, and she had no neurologic deficits. A postoperative lumbosacral MRI was done and confirmed near total excision of the tumor. Conclusion: Intramedullary conus epidermoid cysts are rare but not unknown to neurosurgeons. MRI with diffusion-weighted images (DWI) is an imaging modality of choice. Asymptomatic patients can be conservatively treated. Once the patient has progressive symptoms and signs of compression, surgical excision is recommended. Meticulous electrocauterization may help decrease tumor regrowth in the remnant capsule, which is recommended. Avoiding leakage of cyst fluid into the subarachnoid space helps to avoid postoperative chemical meningitis. Radiotherapy is an option for the management of multiple recurrences.
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