Two unusual fibroxanthomas were studied by light microscopy. The first case contained numerous osteoclast-like cells and resembled malignant giant cell tumour of soft tissues, a variant of malignant fibrous histiocytoma. Osteoclast-like giant cells were negative for lysozyme and alpha-1-antitrypsin. The second case contained areas of chondroid differentiation which resembled chondrosarcoma. Tumour cells within the cartilaginous areas were positive for S100 protein.
No takes yet. Share an insight, caveat, or question.
Wilson et al. (1989) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: