Therefore, we propose this would suggest a possible autoimmune mechanism for the development of pyoderma gangrenosum and exacerbation of psoriasis with pegylated interferon therapy.

• 因此，我们提出聚乙二醇化干扰素治疗后出现坏疽性脓皮病和银屑病加重的可能自身免疫性机制。