Invasive Tendon Sheath Fibrosarcoma Causing Radial Osteolysis in a Golden Retriever Academic Article uri icon


  • ABSTRACT This case report details a previously undescribed malignancy of the tendon sheath in a golden retriever. This dog originally presented with lameness of the left forelimb, at which point radiographs revealed a monostotic, lytic lesion of the distal radius with overlying soft-tissue swelling. A fine-needle aspirate was performed, and cytology was compatible with a sarcoma, with the primary differential being an osteosarcoma. After amputation, the leg was submitted for histopathology, which revealed inconsistencies with a typical osteosarcoma lesion, including lack of osteoid deposition. Second opinion histopathology showed a fibrosarcoma that appeared to have originated in the tendon sheath of an extensor tendon and then secondarily invaded the radius. At the time of publication, ∼17 mo after amputation, the dog continues to do well without any evidence of recurrent or metastatic disease.

published proceedings

  • Journal of the American Animal Hospital Association

altmetric score

  • 0.5

author list (cited authors)

  • Coleman, M., Cook, M. R., Pool, R. R., Wavreille, V. A., Brown, M., & Selmic, L. E.

citation count

  • 0

complete list of authors

  • Coleman, Mary||Cook, Matthew R||Pool, Roy R||Wavreille, Vincent A||Brown, Megan||Selmic, Laura E

publication date

  • November 2021