engleski

Učestalost kožnih nodula sivih i bijelihkonja

Skin tumours are common in horses of all breeds and ages. The three most common skin tumours in horses are sarcoids, melanomas and squamous cell carcinomas. Melanocytic neoplasms have been reported to represent up to 18.7% of all equine cutaneous neoplasms. Most melanomas occur in aged grey horses, primarily in the skin of the perineum and ventral tail regions, but have also been reported in the parotic region and within the skeletal muscles. In this study a population of 69 Warmblood, grey and white horses were examined for the presence of cutaneous nodules. Data regarding their age, gender and time spent outdoors were also recorded. The study included 30 male and 39 female horses, four to 24 years old (average age 10.4±5.2). All of the horses were carefully inspected and palpated in daylight conditions, and all the nodules were recorded describing the amount and the region of their presence. Horses were divided according to age in three groups: up to 10 years old, 10 to 15 years old and 15 years and older. Skin nodules were recorded in 39.13% of examined horses. The most common regions with skin nodules were the ventral tail, perineal, perianal and parotic region. Skin nodules were recorded in 16 mares (23.19%) and 11 male horses (15.94%). Most cutaneous nodules were noted among the oldest age group (p˂0.01). Taking into account the horses with skin nodules, most of them (77.78%) were kept out of the stable for more than 4 hours a day. A single skin nodule was noted in 37.04%, whereas the 62.96% of animals had multiple nodules. Most of the skin nodules were noted in older horses, indicating the possible effect of melanoma formation in older grey and white horses. Although there were more horses with skin nodules in the group that spends most time outdoors, significant association has not been noted. However, larger studies are warrant to investigate this hypothesis.

skin nodul, melanoma, grey horse

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