Equine congenital cutaneous papillomatosis: a report of 5 cases.

The study reports five cases of equine congenital cutaneous papillomatosis identified from a review of 555 cases of cutaneous tumours in horses, collected over a ten-year period at the Ontario Veterinary College’s pathology department.

Introduction to the Study and Cases

• The research conducted at the Ontario Veterinary College primarily involved the review of 555 cases of cutaneous (skin) tumours in horses.
• During this review, they discovered and focused their study on four cases of a particular type of skin tumour called equine congenital cutaneous papillomatosis.
• These tumours are benign growths present from birth and caused by a horse’s specific response to certain forms of the equine papillomavirus.

Overview of the Identified Cases

• Along with the four reported cases discovered during the review, a fifth case was included that was received after the initial 10-year review period.
• The horses in which the tumours were found varied in breed, including Thoroughbreds, a Standardbred, and an Arabian.
• The breed of one of the horses was not specified.
• The location of these tumours also varied greatly, with one from the rib cage, one from the head, one from the hind leg, and two from the forehead.

Significance of the Study

• This study provides valuable insights into the prevalence, breed disposition, and anatomical locations of equine congenital cutaneous papillomatosis.
• Recognizing these factors aids the veterinary community in better understanding this specific type of equine skin tumour and can improve diagnostic strategy.
• Furthermore, with greater understanding of equine congenital cutaneous papillomatosis, strategies for its effective management and treatments can be developed.