慢性盘形红斑狼疮是一种主要侵犯皮肤和口腔粘膜的慢性良性型疾病,病变形成后可持续数月或数年,也可反复发作。有人报告约5％以下的患者可演变为系统性红斑狼疮。Sganor也曾报告全身红斑狼疮演变为慢性盘状型的病例。盘形红斑狼疮的口腔粘膜病变,可先于或后于皮肤出现,无明显规律性,有时也可单独出现口腔症状,据Shklar、McCarthy等认为大约15％- Chronic discoid lupus erythematosus is a chronic benign disease that primarily affects the skin and oral mucosa. It can last for months or years after it has developed and can be recurrent. It has been reported that about 5% or less of patients may evolve into systemic lupus erythematosus. Sganor also reported cases of systemic lupus erythematosus evolving to chronic disc shape. Oral mucosal lesions of lupus erythematosus can occur before or after the skin, with no apparent regularity, and sometimes with oral symptoms alone, according to Shklar, McCarthy et al., About 15%