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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 ...
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. Squamous-cell carcinoma is the second-most prevalent skin cancer, followed by melanoma. [3]
While melanoma is known as the most aggressive skin cancer, [4] the mortality for PEM is lower than in other melanoma types. [5] Animal-type melanoma earned its name due to the resemblance of melanocytic tumors in grey horses. [3] All ages, including childhood, are susceptible to animal-type melanoma.
Ethmoid hematoma is a progressive and locally destructive disease of horses. It is indicated by a mass in the paranasal sinuses that resembles a tumor , but is not neoplastic by any means. The origins and causes of the ethmoid hematoma are generally unknown.
Equine encephalosis virus; Equine exertional rhabdomyolysis; Equine gastric ulcer syndrome; Equid alphaherpesvirus 1; Equid alphaherpesvirus 3; Equine infectious anemia; Equine influenza; Equine melanoma; Equine multinodular pulmonary fibrosis; Equine polysaccharide storage myopathy; Equine protozoal myeloencephalitis; Equine proximal enteritis ...
Previous beliefs that tumors in the groin or perineum carried a worse prognosis have been discounted. [17] Tumors that have spread to the lymph nodes or other parts of the body have a poor prognosis. Any dog showing symptoms of mastocytosis or with a grade III tumor has a poor prognosis.
Horses with the acute form of colic usually have a duration of colic less than 24 hours long, while chronic cases have mild but intermittent colic. Horses with the chronic form tend to have better prognosis. Rectal examination reveals a mass at the base of the cecum in 50% of cases. [19]
The Belgian Draft Horse is one breed in which JEB occurs Junctional epidermolysis bullosa ( JEB ) is an inherited disorder that is also known as red foot disease or hairless foal syndrome . [ 1 ] JEB is the result of a genetic mutation that inhibits protein production that is essential for skin adhesion. [ 2 ]