A case of pyrotinib?related generalized lichen planus in the treatment of human epidermal growth factor receptor 2?positive breast infiltrating ductal carcinoma

Fan Wen, Su Ting, Zheng Yujie, Zhang Meihua, Lu Yan, Su Zhonglan

Chinese Journal of Dermatology . 2026, (3): 260 -261 . DOI: 10.35541/cjd.20220456