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Equine Lymphangitis is an inflammation or swelling associated with impairment of the lymphatic system, particularly in a limb, in horses. It is most commonly a bacterial infection, although bacterial culture may be negative. Often referred to as fat/big leg disease, it is sometimes known as weed or Monday morning disease (not to be confused with the more common usage of MMD referring to exertional rhabdomyolysis or azoturia). This article refers mainly to sporadic lymphangitis. Ulcerative lymphangitis is referred to in passing, as it is managed in a similar manner. Epizootic lymphangitis is similar to glanders, but caused by the fungus ''Histoplasma farciminosum''.〔OIE ''Manual of Diagnostic Tests and Vaccines for Terrestrial Animals'' 2004 Chapter 2.5.13, ()〕 ==Causes== ''Corynebacterium pseudotuberculosis'' has been cultured from some cases (particularly of ulcerative lymphangitis; however, in others, bacterial culture is negative. This may be because: * a) The micro-organism responsible is difficult to culture (e.g. many ''Mycoplasma'' species). * b) The organism has been effectively eliminated by the immune system and the pathology is due to an excessive immune response after the organism has been cleared. * c) The organism is not a bacterium but a fungus, so is very difficult to culture. * d) The disease has another cause. Of these, a) is thought to be the most likely, and d) the most improbable. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Equine lymphangitis」の詳細全文を読む スポンサード リンク
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