| Under the topic of auto-immunity, most programs included only two specific diseases, systemic lupus erythematosus and rheumatoid arthritis. |
| Other collagen diseases, such as progressive systemic sclerosis and systemic lupus erythematosus, are associated with increased incidence of pneumothorax. |
| Another common autoimmune rheumatic disease in which the skin is often injured is lupus erythematosus. |
| Vasculitis may also occur as a secondary feature in other diseases, such as systemic lupus erythematosus and rheumatoid arthritis. |
| Other papulosquamous disorders should be considered in the differential diagnosis, including guttate psoriasis, pityriasis rosea, and discoid lupus erythematosus. |
| Discoid lupus erythematosus is a chronic disease characterized by inflammatory, scarring lesions. |
