A friend asked me about this condition the other day, because his friend's dog has been diagnosed with it. Lupus is an autoimmune disease, which means that a dog's immune system attacks his own tissues. There are two types of lupus in dogs: systemic and discoid.
By Daniel Beatty, DVM. Discoid Lupus Erythematosus (DLE) in dogs is an autoimmune disease in which the immune system attacks the skin in the area of the face and specifically nose. Our dear friend Jana has written about this before in the article Collie Nose: Discoid Lupus Erythematosus (DLE)...