Dedifferentiation is a phenomenon of increase to higher grade of malignancy by a certain lower-grade (grade 1 or 2) malignant tumor or even benign tumor during their course. Dedifferentiated chondrosarcoma (DCSA) is a rare, higher-grade malignant variant transformed from conventional CSA or even benign cartilage tumor such as enchondroma and osteochondroma with abrupt transition to higher-grade noncartilaginous malignant tumor.

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Dedifferentiated Chondrosarcoma

  • Won-Jong Bahk

摘要

Dedifferentiation is a phenomenon of increase to higher grade of malignancy by a certain lower-grade (grade 1 or 2) malignant tumor or even benign tumor during their course. Dedifferentiated chondrosarcoma (DCSA) is a rare, higher-grade malignant variant transformed from conventional CSA or even benign cartilage tumor such as enchondroma and osteochondroma with abrupt transition to higher-grade noncartilaginous malignant tumor.