Discoid Lupus Erythematosus

Question 1

What is discoid lupus erythematosus

Answer 1

Discoid lupus erythematosus is a non-cancerous chronic skin condition. It is more common in women and usually presents in young adults between ages 20 to 40. It is more common in darker-skinned patients and smokers.

It is associated with an increased risk of developing systemic lupus erythematosus, however this risk is still below 5%. Rarely the lesions can progress to squamous cell carcinoma (SCC) of the skin.

Question 2

Presentation of discoid lupus erythematosus

Answer 2

The lesions typically occur on the face, ears and scalp. They are photosensitive, meaning that they are made worse by exposure to sunlight. They are associated with scarring alopecia (hair loss in affected areas that does not grow back) and hyper-pigmented or hypo-pigmented scars.

The appearance of the lesions are:

Inflamed
Dry
Erythematous
Patchy
Crusty and scaling

Question 3

Management of discoid lupus erythematosus

Answer 3

Skin biopsy can be used to confirm the diagnosis.

Treatment is with

Sun protection
Topical steroids
Intralesional steroid injections
Hydroxychloroquine