Epidermal (infundibular) and dermoid cysts in the dorsal midline of a three-year-old thoroughbred-cross gelding.
Epidermal (infundibular) and dermoid cysts are unusual in the horse in contrast with other species. The diagnosis and treatment of six lesions in the dorsal midline of a three-year-old Thoroughbred-cross gelding is described. The lesions were believed to be congenital and presented asymptomatically but required attention because five of them were in the saddle region, thus preventing ridden exercise. Under general anaesthesia, the cysts were excised and subsequently examined histologically. The horse recovered uneventfully. This report is novel in that such midline cysts have not previously been described outside Australia and North America.
Hillyer
Lynn L
LL
Division of Companion Animal Science, Department of Clinical Veterinary Science, University of Bristol, Langford House, Langford BS40 5DU, UK.
Jackson
Anna P
AP
Quinn
Greg C
GC
Day
Michael J
MJ
D000818:Animals; D001050:Apocrine Glands / Q000473:pathology; D003884:Dermoid Cyst / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D006734:Horse Diseases / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006736:Horses; D008297:Male; D012878:Skin Neoplasms / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*