| The differential diagnosis in this case includes secondary syphilis, lepromatous leprosy, cutaneous tuberculosis, and discoid lupus erythematosus. |
| Anemia with thrombocytopenia indicates leukemia, systemic lupus erythematosus or aplastic anemia. |
| Discoid lupus erythematosus is a chronic disease characterized by inflammatory, scarring lesions. |
| For example, rheumatoid arthritis, systemic lupus erythematosus, and pemphigus occur more often in middle-aged people or sometimes in young adults. |
| In patients with the malar rash of systemic lupus erythematosus, papules may be present, but pustules are rare. |
| Another common autoimmune rheumatic disease in which the skin is often injured is lupus erythematosus. |
