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Quadrilateral suspensory and straight sesamoidean ligament calcifying desmopathy in an Arabian mare

Hui, S.K.Y.; Turner, S.J.; Leaman, T.R.; de Brot, Simone; Barakzai, S.Z.

Authors

S.K.Y. Hui

S.J. Turner

T.R. Leaman

Simone de Brot

S.Z. Barakzai



Abstract

A 5-year-old Arabian mare was referred for the investigation of recent behavioural change, generalised stiffness, and owner-reported polyuria and polydipsia. Clinical examination revealed severe pain associated with palpation along the entire length of the suspensory ligament (SL) and palmar soft tissues of the pastern regions of both forelimbs. Radiographs of the distal forelimbs demonstrated marked radiopaque striations within the straight sesamoidean ligaments (SSL), and less severe but similar changes in the regions of the SL branches. Ultrasonography of both distal forelimbs revealed multifocal, hyperechoic lesions within the SSLs. The SL bodies and branches were enlarged and had mixed echogenicity on ultrasound scan. The horse was euthanased at the owner’s request and submitted for post-mortem examination. Relevant gross findings were restricted to the SLs and SSLs of all four limbs, all of which contained severe mineralisation and irregularly arranged fibres. Histological examination revealed severe, multifocal to coalescing, dystrophic mineralization with cartilaginous and osseous metaplasia, which suggested a primary calcifying desmopathy affecting all four SLs and SSLs. Clinical findings in the case reported here were similar to that of degenerative suspensory ligament desmitis (DSLD) previously reported by many authors, but diagnostic imaging and histopathological findings were significantly different.

Citation

Hui, S., Turner, S., Leaman, T., de Brot, S., & Barakzai, S. (2016). Quadrilateral suspensory and straight sesamoidean ligament calcifying desmopathy in an Arabian mare. Equine Veterinary Education, https://doi.org/10.1111/eve.12705

Journal Article Type Article
Acceptance Date Dec 1, 2016
Publication Date Dec 20, 2016
Deposit Date Mar 31, 2017
Publicly Available Date Mar 31, 2017
Journal Equine Veterinary Education
Print ISSN 0957-7734
Electronic ISSN 2042-3292
Publisher Wiley
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1111/eve.12705
Keywords Horse; Desmopathy; Suspensory ligament; Degenerative; Calcifying
Public URL https://nottingham-repository.worktribe.com/output/832779
Publisher URL http://onlinelibrary.wiley.com/doi/10.1111/eve.12705/abstract
Additional Information This is the peer reviewed version of the following article: Hui, S. K. Y., Turner, S. J., Leaman, T. R., de Brot, S. and Barakzai, S. Z. (2016), Quadrilateral suspensory and straight sesamoidean ligament calcifying desmopathy in an Arabian mare. Equine Vet Educ., which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/eve.12705/abstract. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

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