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  • Title: Spinal Intradural Extramedullary Dermoid Cyst.
    Author: Khalighinejad F, Hajizadeh M, Mokhtari A, Rakhshan R, Hajizadeh M, Rezvani M.
    Journal: World Neurosurg; 2020 Feb; 134():448-451. PubMed ID: 31759148.
    Abstract:
    BACKGROUND: Dermoid cysts are benign congenital tumors that develop early in life. These tumors are classified by the presence of all 3 germ layers. Spinal intradural extramedullary teratoma is a rare disease, which is more common in children under 5 years of age than in adults. CASE DESCRIPTION: A 12-year-old girl with a dermoid cyst at the lower lumbar level presented with 2-month low back pain and intermittent lower extremity radicular symptoms on the right side. Magnetic resonance imaging scan of the spine revealed an intradural extramedullary mass lesion at L4-5. Surgical excision of the cyst was successfully performed. Surgical and histopathologic findings confirmed extramedullary ruptured matured teratoma. Postoperatively, the patient had remarkable clinical improvement. CONCLUSIONS: Although dermoid cysts are uncommon, they should be considered in the differential diagnosis of spinal lesions in patients with lower back pain. It can be successfully treated with surgical excision.
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