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KMID : 0613320120180010045
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Journal of the Korean Bone and Joint Tumor Soceity
2012 Volume.18 No. 1 p.45 ~ p.49
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FDG-PET/CT Complements Bone Scan with Respect to the Detection of Skip Metastasis of Osteosarcoma: A Case Report
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Cheon Gi-Jeong
Choe Jae-Gol
Choi In-Chung
Lee Dae-Hee
Song Sang-Heon
Kim Myo-Jong
Park Jong-Hoon
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Abstract
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Skip lesion is not uncommon feature in osteosarcoma and considered to be importantly associated with poor prognosis factor, and thus, should be excised with the main mass. The accurate pre-operative evaluation of the intramedullary extent of osteosarcoma is essential, because it determines the level of bone resection. Among the reliable detection methods, bone scan has a drawback of high rate of false negative results and regional MRI has a diffi culty to cover the whole involved lesions without clinical suspicion. The authors report a case of osteosarcoma of the distal femur with a proximal skip lesion that was not detected by either regional MR imaging or by bone scan, but which was visualized by FDG-PET/CT.
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KEYWORD
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skip metastasis, osteosarcoma, F-18 FDG-PET/CT, bone scintigraphy (BS)
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