n SA Journal of Radiology - Secondary chondrosarcoma : malignant transformation of pre-existing hereditary and non-hereditary cartilaginous lesions : case report

Volume 18, Issue 2
  • ISSN : 1027-202X
  • E-ISSN: 2078-6778



Secondary chondrosarcoma is a malignant hyaline cartilage tumour originating from a cartilaginous precursor, either osteochondroma or enchondroma. We contrast two different cases of biopsy-proven secondary chondrosarcomas resulting from benign, pre-existing cartilaginous lesions - our aim is to contrast and compare these two benign conditions consisting of multiple cartilaginous lesions - one hereditary and the other non-hereditary - and emphasise their potential for malignant transformation.

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