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DOI: 10.1055/a-2654-8450
Canine Haemophilic Arthropathy: Magnetic Resonance Imaging and Histologic Assessment of Joints in Two Adult Beagles with Confirmed Factor Deficiencies
Funding Hospital for Special Surgery MRI Laboratory receives institutional research support from GE Healthcare, although no funds were provided for this study.

Abstract
Two adult female Beagle dogs, one case each of hereditary Factor VII deficiency and Factor IX deficiency, were evaluated post-mortem for joint pathology associated with haemophilic arthropathy (HA) using magnetic resonance imaging and histology. Cadaveric magnetic resonance imaging and histologic findings demonstrated severe HA for the Factor IX deficiency dog, with only mild abnormalities for the Factor VII deficiency dog. Signs of HA were similar to humans, including cartilage degeneration, subchondral cysts, peripheral erosions, neovascularization, synovial inflammation and hyperplasia, hemosiderin deposition, haematoma and osteoporosis. Magnetic resonance imaging examination can be used to help identify features of HA in dogs that have experienced repeated joint bleeds.
Authors' Contribution
S.L.P., B.G.C., K.H. and M.B.B. contributed to the conception of the study, study design and data analysis and interpretation. All authors contributed to the acquisition of data. All authors drafted, revised, and approved the submitted manuscript
Publikationsverlauf
Eingereicht: 26. Dezember 2024
Angenommen: 14. Juli 2025
Artikel online veröffentlicht:
25. Juli 2025
© 2025. Thieme. All rights reserved.
Georg Thieme Verlag KG
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