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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. Squamous-cell carcinoma is the second-most prevalent skin cancer, followed by melanoma. [3]
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 ...
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 ...
Carcinogenic parasites are parasitic organisms that depend on other organisms (called hosts) for their survival, and cause cancer in such hosts.Three species of flukes are medically-proven carcinogenic parasites, namely the urinary blood fluke (Schistosoma haematobium), the Southeast Asian liver fluke (Opisthorchis viverrini) and the Chinese liver fluke (Clonorchis sinensis).
Equine protozoal myeloencephalitis (EPM) is a disease that affects the central nervous system of horses. It is caused by a protozoal infection that is brought about by the apicomplexan parasites Sarcocystis neurona or Neospora hughesi .
In horses, subcutaneous pythiosis is the most common form and infection occurs through a wound while standing in water containing the pathogen. [2] The disease is also known as leeches, swamp cancer, and bursatti. Lesions are most commonly found on the lower limbs, abdomen, chest, and genitals.
Horses heterozygous for the Ile118Lys mutation on the equine EDNRB gene—carriers of lethal white syndrome—usually exhibit a white-spotting pattern called "frame", or "frame overo". [5] [7] [9] [13] Frame is characterized by jagged, sharply defined, horizontally oriented white patches that run along the horse's neck, shoulder, flank, and ...
The condition can be fatal in 3 out of 10 horses that are infected, but up to one-third of horses infected have been shown to be asymptomatic, so there is variability in the disease presentation. [5] Due to the severe symptoms associated with the disease, and fatality rate, this condition is of concern for horse owners.