Standing transcutaneous surgical excision of a sialolith in an 11‐year‐old Thoroughbred mare. (20th November 2017)

• Record Type: Journal Article
• Authors: Poore, L.; Smit, Y.; Williams, J.; Steenkamp, G.
• Is Part Of: Equine veterinary education. Volume 31:Number 7(2019)
• Page Start: 343
• Page End: 347
• Publication Date: 2017-11-20
• Subjects: horse -- sialolithiasis -- parotid -- salivary duct -- excision -- standing sedation; Horses -- Diseases -- Periodicals; Horses -- Diseases -- Treatment -- Periodicals; 636.108905
• DOI: 10.1111/eve.12864
• Languages: English
• ISSNs: 0957-7734

Abstract

Summary: An 11‐year‐old Thoroughbred mare was diagnosed with sialolithiasis of the right parotid salivary duct. A firm nonpainful subcutaneous mass was palpable in the right maxillary region adjacent to premolar 4 (tooth 108). Radiographic and ultrasonographic examinations identified a discrete mineralised ovoid mass that was hyperechoic and produced an acoustic shadow. Surgical excision of the mass was performed under standing sedation using a transcutaneous approach and the excised sialolith submitted for histopathological and mineral composition analyses. Histological examination found no evidence of a nidus at the sialolith's core. Mineral analysis of the sialolith revealed its composition to be 40% calcium phosphate (apatite) and 60% calcium carbonate. The mare recovered with no post‐operative complications and was clinically unremarkable 2 years later.