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KMID : 0613319970030020119
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Journal of the Korean Bone and Joint Tumor Soceity
1997 Volume.3 No. 2 p.119 ~ p.126
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Skip Metastasis in Obteosarcoma
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Rhee Seung-Koo
Song Seok-Whan
Kwon Soon Yong
Ryoo Seung-Joon
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Abstract
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From 1980 to 1997, we experienced 3 skip metastasis in femur out of 19 osteosarcoma patients. After diagnostic incisional biopsy and chemotherapy, hip disarticulations for all patients were performed. Still the mechanism of skip metastasis is unclear, but there have been two suggestions including medullary extension through an intraosseous embolism of tumor cells, or transarticular extension along the planes of fascia, capsule, ligaments, and venous channels around joints. The mechanisms of skip metastasis in our cases were not clear, but it was considered as an initial preliminary stage of metachronous osteosarcoma. If there are evidences of skip metastasis, it is strongly recommended to disarticulate proximal to the skip lesion rather than to amoutate transmedullary.
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KEYWORD
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Femur, Osteosarcoma, Skip metastasis, Tumor metasrasis mechanism
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