Causes of Cutaneous Lupus
Cutaneous lupus is caused by an autoimmune response, but the exact causes of the underlying autoimmune response are unknown. Certain factors can trigger cutaneous lupus, such as:
- Certain medications
- Exposure to sunlight
Symptoms of Cutaneous Lupus
The main symptoms of cutaneous lupus are the skin changes described above that occur with each variation of the condition. Other symptoms that can occur include:
- Itchiness in the skin
- Burning in the skin
- Pain in the skin
Diagnosis of Cutaneous Lupus
Our experienced dermatologists are skilled at evaluating symptoms to confirm a diagnosis. We begin with a thorough evaluation that includes a:
- Physical exam
- Review of personal and family medical history
- Discussion of symptoms
To confirm a diagnosis of a specific type of cutaneous lupus, we usually recommend further testing, which might include:
- Blood tests: Tests that check for inflammation or antibodies
- Skin biopsy: Removal of a small sample of affected skin to examine under a microscope for signs of disease
- Direct immunofluorescence: A test that uses special dyes to stain the skin biopsy sample and test it for antibodies
Treatment for Cutaneous Lupus
Although cutaneous lupus currently has no cure, treatment can manage symptoms. Our dermatologists prescribe medications such as:
- Corticosteroids to relieve inflammation, burning, itching, redness, and swelling. The types of steroid medications we use include:
- Topical corticosteroids, which are creams or gels that patients apply once or twice daily to the affected areas
- Injectable corticosteroids for larger lesions to ensure that medication reaches deeper layers, where it can work to improve skin lesions and provide symptomatic relief
- Oral corticosteroids such as prednisone, typically reserved for severe disease
- Antimalarial medications, such as hydroxychloroquine, chloroquine, and quinacrine, to reduce inflammation
- Immunosuppressants, such as mycophenolate mofetil, azathioprine, and methotrexate, to reduce immune response in patients with severe disease that hasn’t improved with other treatments
Our specialists also recommend minimizing sun exposure through lifestyle changes such as:
- Applying sunscreen with a sun protection factor (SPF) of 30 or higher
- Wearing sun-protective clothing
- Avoiding sun exposure between 10 a.m. and 4 p.m.
Support Services
The Lupus Foundation of America is a national organization that aims to improve quality of life in patients with a diagnosis of lupus through research, education, support, and advocacy. Its website – lupus.org – provides information, resources, and ways for patients to connect to local and national support networks.
The organization has a local chapter in Dallas, Texas, called the Lone Star Chapter (lupus.org/lonestar). This chapter provides resources both for lupus patients and their caregivers, including information about understanding, treating, coping, and living with lupus. It has many ways for patients to get involved, such as joining the Walk to End Lupus Now, the Advocacy committee, an educational seminar, or a support group. It also has information to help patients find physicians and resources in their local Texas community and news about ongoing nearby clinical trials.
Clinical Research for Cutaneous Lupus
Dermatologists at UT Southwestern are establishing a national registry for patients with cutaneous lupus and their relatives. Our goal is to gather a large number of patients necessary for studies to better understand the development of the disease and improve our methods of diagnosis, prognosis, and treatment.
This registry is a significant advancement in cutaneous lupus research and will provide a resource for investigators to make discoveries in both the clinical and genetic aspects of the disease. Patients enrolled in the study will be first in line for clinical trials conducted at UT Southwestern for cutaneous lupus.
Patients who are interested in learning more about the registry can email us or call us at 214-648-3427.
Patients with cutaneous lupus are at risk for developing systemic lupus erythematosus, even if they do not have this at diagnosis. No medication that been shown to prevent this progression. There is currently a randomized controlled trial looking at whether hydroxychloroquine can delay this development in patients at risk for developing systemic lupus. We encourage patients who are interested in learning more about this trial to call 214-648-7219 or email us.