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Skin cancer, or neoplasia, is the most common type of cancer diagnosed in horses, accounting for 45 [1] to 80% [2] of all cancers diagnosed. Sarcoids are the most common type of skin neoplasm and are the most common type of cancer overall in horses.
Initial signs include thickening, crusting and folding of the skin. [7] These early signs may be hidden by the long hair ( feather ) on the horse's lower legs. [ 6 ] Affected areas are itchy, causing the horse to stamp its feet and rub its legs, and painful, so that the horse may be reluctant to allow its legs to be touched. [ 4 ]
The treatment of equine lameness is a complex subject. Lameness in horses has a variety of causes, and treatment must be tailored to the type and degree of injury, as well as the financial capabilities of the owner. Treatment may be applied locally, systemically, or intralesionally, and the strategy for treatment may change as healing progresses.
The skin is loose, and hyper-elastic in affected horses. This collagen based abnormality affects their heart valves too and their mechanical properties are found to be inferior to native horses. [2] Symptoms typically don’t appear until the horse is subjected to pressure or injury on their back, neck or hips, usually around two years of age.
An equine melanoma is a tumor that results from the abnormal growth of melanocytes in horses. Unlike in humans, melanomas in horses are not thought to be caused by exposure to ultraviolet light. [1] Melanomas are the third most common type of skin cancer in horses, with sarcoids being the first most prevalent and squamous-cell carcinoma being ...
Pain is the most common cause of lameness in the horse. [2] It is usually the result of trauma or orthopedic disease, but other causes such as metabolic dysfunction, circulatory disease, and infection can also cause pain and subsequent lameness.
As another general cause, there are also toxicities that can cause signs of ER. For example, if a horse were to ingest the blister beetles and/or Day Blooming Jasmine - a broadleaf evergreen shrub, [3] each can cause signs of ER. The blister beetle is known to distribute a toxin known as cantharidin. This toxin if ingested can cause severe ...
The most common clinical signs are subcutaneous edema of the limbs and hemorrhages on mucous membranes. Other clinical signs include depression, anorexia, fever, elevated heart and respiratory rate, reluctance to move, drainage from lymph nodes, exudation of serum from the skin, colic , epistaxis and weight loss. [ 3 ]