• Yun-Sik Dho, Hyoungmin Kim, Kyu-Chang Wang, Seung-Ki Kim, Ji Yeoun Lee, Hee Young Shin, Kyung Duk Park, Hyoung Jin Kang, Il Han Kim, Sung-Hye Park, and Ji Hoon Phi.
• Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul, Korea.
• World Neurosurg. 2018 Jun 1; 114: e689-e697.

ObjectiveSpinal epidural lymphoma with compressive myelopathy is a rarely found condition. The aims of this study are to describe the clinical features and to analyze its treatment outcome and prognostic factors.MethodsWe searched for all pediatric patients with newly diagnosed spinal epidural lymphoma from 1999 to 2014 in our institution. We evaluated the clinical features, including neurologic status, time interval to treatment, treatment modality, and outcomes.ResultsTwelve of 302 pediatric patients with lymphoma (4.0%) presented with compressive myelopathy, and they were all found to have spinal epidural lymphoma. In 11 patients, epidural space was the only site of lymphoma involvement. The median age was 9 years (range, 5-15 years). Common initial symptoms were back pain and low extremity weakness. Surgery was performed on 9 patients, biopsy on 2 patients, and radiation therapy on 1 patient. In 9 patients who received surgery, 6 patients with preoperative motor power grade ≥II attained improvement in weakness. Three patients with preoperative motor power grade ConclusionsSpinal epidural lymphoma with compressive myelopathy is a serious disease in children necessitating urgent treatment. Preserved motor power is a meaningful prognostic factor of neurologic improvement. Treatment should be individualized based on the patient's neurologic condition.Copyright © 2018 Elsevier Inc. All rights reserved.

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