Abstract：
OBJECTIVE:Giant sacral schwannomas are rare and difficult to treat. Unexpected neurologic deficits after surgery and tumor recurrence should be considered when surgery is performed. We attempt to remove the tumors via piecemeal total or subtotal excision, leaving parts of the capsule adjacent to nerves to preserve the nerves. This study aimed to present the cases of giant sacral schwannoma at our institutions as well as review the relevant literature and to discuss surgical management. METHODS:This study included 11 patients (5 male and 6 female, mean age 53 years) with giant sacral schwannoma who were treated surgically. The clinical features, surgical details, and outcomes were investigated retrospectively. RESULTS:The tumors were intraosseous type in 4 cases, dumb-bell type in 3 cases, and retroperitoneal type in 4 cases. The surgeries were performed by a combined anterior and posterior approach in 4 cases, a posterior approach in 4 cases, and an anterior approach in 3 cases. The tumors were removed via piecemeal total or subtotal excision in 7 cases, partial excision in 3 cases, and enucleation in 1 case. After surgery, symptoms improved in all cases. The tumor recurred in 2 patients after partial excision. No patients receiving piecemeal total or subtotal excision showed recurrence. One patient developed motor weakness after piecemeal subtotal excision, but the symptoms resolved. CONCLUSIONS:Adopting an appropriate surgical approach based on the location of the tumor is important. Piecemeal total or subtotal excision, with parts of the capsule adjacent to nerves left behind may help achieve a good outcome, avoiding a postoperative neurologic deficit.
journal_name
World Neurosurgjournal_title
World neurosurgeryauthors
Handa K,Ozawa H,Aizawa T,Hashimoto K,Kanno H,Tateda S,Itoi Edoi
10.1016/j.wneu.2019.05.113subject
Has Abstractpub_date
2019-09-01 00:00:00pages
e216-e223eissn
1878-8750issn
1878-8769pii
S1878-8750(19)31387-7journal_volume
129pub_type
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journal_title：World neurosurgery
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