| Other papulosquamous disorders should be considered in the differential diagnosis, including guttate psoriasis, pityriasis rosea, and discoid lupus erythematosus. |
| Anemia with thrombocytopenia indicates leukemia, systemic lupus erythematosus or aplastic anemia. |
| Another common autoimmune rheumatic disease in which the skin is often injured is lupus erythematosus. |
| Discoid lupus erythematosus is a chronic disease characterized by inflammatory, scarring lesions. |
| Vasculitis may also occur as a secondary feature in other diseases, such as systemic lupus erythematosus and rheumatoid arthritis. |
| For example, rheumatoid arthritis, systemic lupus erythematosus, and pemphigus occur more often in middle-aged people or sometimes in young adults. |
