The impact of osteonectin for differential diagnosis of bone tumors. An immunohistochemical approach.

Abstract

75 osteosarcoma at various grades of histologic differentiation, including chondroblastic and small cell variants, and 5 fibrosarcomas of bone, 5 Ewing's sarcomas, 5 malignant fibrous histiocytomas of bone, 8 chondrosarcomas, and 2 dedifferentiated chondrosarcomas, were investigated immunohistochemically for evidence of osteonectin. According to the results of our study, osteonectin is present in all osteosarcomas, with special topographic preponderance in the osteoblastic and chondroblastic variants. Evidence of osteonectin was also found in all other bone tumors we had analysed so far. In chondrosarcomas, positive reactions appeared only in the vicinity of trabeculae and in dedifferentiated areas. Thus, osteonectin cannot be regarded as a bone-specific protein. Although a high affinity for the osseous matrix is one of its undoubted features, it is therefore unsuitable for differential diagnostic purposes.

• Authors: A Bosse, E Vollmer, W Böcker, A Roessner, P Wuisman, D Jones, L W Fisher
• Journal: Pathology, research and practice (Pathol Res Pract) Vol. 186 Issue 5 Pg. 651-7 (Oct 1990) ISSN: 0344-0338 [Print] Germany
• PMID: 2287591 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Osteonectin

Topics

• Bone Neoplasms (diagnosis, metabolism)
• Diagnosis, Differential
• Humans
• Immunohistochemistry (methods)
• Osteonectin (analysis)