Discoid (Cutaneous) Lupus Erythematosus

Oveview:

This syndrome is a benign variant of systemic lupus and only affects the skin. It is one of the most common immune-mediated skin diseases. It appears to have a genetic link and collies, German shepherds, huskies, and chow chows are predisposed.

Causes:

The actual cause of discoid lupus is unknown, but drug reactions, viruses, and UV light have all been implicated.

Symptoms:

This disease typically affects the nose, face, ears, and mucous membranes. The first signs are depigmentation of the nose or lips, then ulcers will form. These areas are very fragile and bleed easily. Severe cases can have abundant crusting and scarring with possible disfiguring lesions.

Treatment:

This disease is not life-threatening but can cause the pet some discomfort. Tetracycline and vitamin E are very helpful in reducing the lesions. Topical steroids are used in minor cases and oral steroids can be used in severe cases. It is also wise to avoid sunlight as much as possible and apply sunscreen to affected areas if patient will be exposed to UV light.