Publication: Giant sacral schwannoma: A report of six cases
Issued Date
2010-05-12
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ISSN
03009734
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2-s2.0-77950805388
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Mahidol University
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SCOPUS
Bibliographic Citation
Upsala Journal of Medical Sciences. Vol.115, No.2 (2010), 146-152
Suggested Citation
Chanplakorn Pongsthorn, Hiroshi Ozawa, Toshimi Aizawa, Takashi Kusakabe, Takeshi Nakamura, Eiji Itoi Giant sacral schwannoma: A report of six cases. Upsala Journal of Medical Sciences. Vol.115, No.2 (2010), 146-152. doi:10.3109/03009730903359674 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/29662
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Title
Giant sacral schwannoma: A report of six cases
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Abstract
Sacral and presacral schwannomas are often found incidentally, because they present with vague symptoms or symptomless. Schwannoma occurring in this area occasionally presents with enormous dimensions, known as a giant schwannoma. The tumor removal is a surgical challenge due to the difficult approach and abundant vascularity. The aim of this study is to review cases of giant sacral schwannomas focusing the surgical management and outcome. Six patients with sacral and presacral schwannoma were treated surgically. The patients included two males and four females, and the mean age was 47.8 years. All patients experienced pain at the time of presentation. The tumors were classified as intraosseous type in one case, dumb-bell type in four cases, and retroperitoneal type in one case. The tumors were removed with a piecemeal subtotal excision in three patients, a partial excision in two patients, and enucleation in one patient. The surgeries were performed by the combination of an anterior and posterior approach in three patients, a posterior approach in two patients, and an anterior approach in one patient. The mean surgical time was 7.8 hrs, and the mean blood loss was 2572 g. The tumor recurred in one patient after the partial excision and was removed completely in a second surgery. No patient, including the patient who underwent the second surgery, presented with pain and obvious neurological deficit at the final follow-up. The surgical treatment of the giant sacral schwannoma with a piecemeal subtotal excision can achieve a good outcome, avoiding unnecessary neurological deficit. © 2010 Nordic Orthopedic Federation.