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KMID : 0614620110570050323
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Korean Journal of Gastroenterology
2011 Volume.57 No. 5 p.323 ~ p.326
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A Case of a Retroperitoneal Schwannoma Presenting as Hypermetabolic Mass in PET-CT
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Goh Pyung-Gohn
Ko Kwang-Hun
Kim Eui-Sik
Kim Yun-Jeung
Lee Soo-Youn
Moon Hee-Seok
Jeong Hyun-Yong
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Abstract
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Schwannoma is a benign neoplasm of the Schwann cells of the neural sheath. Most schwannomas occur in the head and neck, and extremities and rarely in the retroperitoneal space. The differentiation of a schwannoma from other malignant tumor or benign tumor is very difficult on a preoperative examination with ultrasonography, computed tomography or magnetic resonance imaging. Furthermore, the lesion with increased fluorodeoxyglucose uptake in PET-CT cannot exclude malignant tumor. Therefore, this lesion needs surgical excision and a histological examination with immunohistochemical staining. We report a case of schwannoma occuring in the retroperitoneal space that incidentally discovered by PET-CT for health-check up. Pathologic confirmation by laparoscopic excision was done.
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KEYWORD
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Schwannoma, PET-CT
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