08/17/2021
Cellulitis, lymphangitis, and vasculitis can look very scary, with sudden massive swelling and strong lameness. These often occur with trauma to the limb, which can be as mild as a tiny scrape or as major as a laceration, but they can also be secondary to systemic infection, immune response, or even pastern dermatitis ("scratches"). Cold hosing, bandaging, and giving appropriate medications prescribed by your veterinarian are crucial in overcoming these events. Please give us a call at 904-878-1229 if you see any of these signs!
You go catch your horse and there he stands, in a lot of pain, with one leg swollen from the stifle down to twice its normal size (the infamous "stovepipe" leg). Sounds familiar?
What is unscientifically called a “fat leg” is usually an inflammation: of subcutaneous connective tissue (in that case it's called cellulitis); of the lymphatic system (called lymphangitis, a severe form of cellulitis); or of blood vessels (called vasculitis). Please note: lymphangitis/cellulitis is a dramatically different condition than your everyday "stocking up" (fluid swelling), which normally resolves with exercise.
A "fat leg" with no obvious trauma can be very frustrating for both horse owner and veterinarian due to its confusing nature. It can sideline a horse for days, weeks, or even months; and severe or untreated cases can become chronic, which can in turn result in fibrosis and hardened spots on the legs.
While causes may vary, once a horse has cellulitis, it’s easy to spot. If you think your equine friend has cellulitis or even if you're not sure, we encourage you to seek professional help promptly. Your horse doctor will make the best treatment recommendations, both to reduce swelling and to address any sort of bacterial infection that might be active or that could occur due to the edema in the soft tissue.
Read more on our website at https://aaep.org/horsehealth/lymphangitis-frustrating-condition