Trauma-induced exostosis of multiple suture lines causing partial bilateral nasolacrimal duct obstruction in a 7-year-old Thoroughbred mare

Authors

  • Luke A Poore University of Pretoria
  • Christelle le Roux University of Pretoria
  • Ann Carstens University of Pretoria

Abstract

A definitive diagnosis of extensive suture line exostoses affecting the nasofrontal, nasolacrimal, nasomaxillary, frontolacrimal, lacrimozygomatic and lacrimomaxillary suture lines in a 7-year-old Thoroughbred mare with chronic bilateral epiphora and facial deformation was achieved using standing computed tomography (CT) examinations. Positive contrast dacryocystorhinography
using CT revealed partial bilateral obstruction of the nasolacrimal ducts. Minimally displaced depression fractures of the right nasal bone, the right maxillary bone and right frontal bone were also demonstrated. The cosmetic appearance of the periosteal reaction associated with the suture line exostosis and epiphora significantly improved within 3 months of diagnosis and treatment. Keywords: horse; trauma; computed tomography; exostosis; suture lines.

Author Biographies

  • Luke A Poore, University of Pretoria

    Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa

  • Christelle le Roux, University of Pretoria

    Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria,
    Pretoria, South Africa

  • Ann Carstens, University of Pretoria

    Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria,
    Pretoria, South Africa

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Published

2021-12-09

Issue

Vol. 90 No. 1 (2019)

Section

Case Report