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KMID : 1141120160020010013
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The Nerve
2016 Volume.2 No. 1 p.13 ~ p.15
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Giant Intraosseous Cellular Schwannoma of the Sacro-pelvic Region in a Young Woman
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Choi Seon-Woong
Kim Sang-Uk
Kim Young-Woo
Kim Seong-Rim
Kim Sang-Don
Park Ik-Sung
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Abstract
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Giant intraosseous schwannoma is very rare. Schwannomas arising around the sacrum can reach a considerable size before becoming symptomatic because of their insidious and slow growth, which can allow the displacement of nerves and internal organs, often resulting in extensive bone erosion. The treatment of these giant schwannomas causes significant neurological disability. A 29-year-old woman was suffering from paresthesia of her left posterior thigh. Her symptom was aggravated since the last 5 months. Neurological examination showed paresthesia in the left S2 and S3 dermatome. There was no anal sphincter dysfunction or voiding difficulty. Plain radiography demonstrated foraminal widening of the left S2. Pelvic computed tomography (CT) and magnetic resonance images (MRI) showed a huge mass extending from the sacrum (S2) to the presacral area. The size of the lobulated mass was 4×4×6 cm. The patient underwent laminectomy and gross total removal of the tumor. Through a posterior approach, the tumor was removed without any neural or visceral organ injury, including the left S2 root. After a 71-month follow-up, the neurologic examination was normal, the urodynamic tests continued to show no abnormal signs, and the MRI studies revealed no evidence of residual tumor or recurrence.
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KEYWORD
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Neurilemmoma, Sacrum, Surgical procedures operative, Treatment outcome
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