The evaluation of discoid lupus begins with a history and physical examination.

Physical findings in someone with discoid lupus may include:

• A facial rash in the shape of a butterfly
• Skin rash and arthritic changes in the hands
• Hair loss

Testing is required to diagnose discoid lupus.

Tests that may be used to evaluate discoid lupus include:

• Anti-DNA antibodies
• Anti-microsomal antibodies
• Anti-mitochondrial antibodies
• Antinuclear antibody titer
• Antithyroglobulin antibodies
• Erythrocyte sedimentation rate (sed rate or ESR)
• Kidney profile
• LE cell prep
• Platelet count
• Complete blood count
• Rheumatoid factor
• White blood cell count
• Kidney biopsy
• Lymph node biopsy
• Chest x-ray
• Urinalysis

For more information:

• Lupus erythematosus evaluation