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Wenting Hu, Xiujiao Xia, Yangyang Ma, Ai-E Xu Department of Dermatology, Hangzhou Third People’s Hospital, Affiliated Hangzhou Dermatology Hospital of Zhejiang University School of Medicine, Hangzhou, People’s Republic of ChinaCorrespondence: Ai-E Xu, Hangzhou Third People’s Hospital, 38 Xihu Ave, Hangzhou, 310009, People’s Republic of China, Email xuaiehz@hotmail.comAbstract: Tinea auricularis is a rare superficial fungal infection, which is easily ignored in clinic due to its atypical clinical symptoms or being accompanied with tinea capitis. In this study, a case of annular erythema with scales around the ear canal orifice was reported. After fungal culture and identification, the patient was diagnosed with Trichophyton rubrum infection, and was cured after 3 weeks of topical use of clotrimazole cream.Keywords: tinea auricularis, ear, infection, Trichophyton rubrum

Jibing Chen,1,2 Feng Mu,1 Tianyu Lu,1 Yangyang Ma,1 Duanming Du,3 Kecheng Xu1,2 1Fuda Cancer Hospital of Jinan University, Guangzhou 510665, People’s Republic of China; 2Fuda Cancer Institute of Guangzhou City, Guangzhou 510665, People’s Republic of China; 3Intervention Department, The Second People’s Hospital of Shenzhen, Shenzhen 518035, People’s Republic of ChinaCorrespondence: Kecheng XuFuda Cancer Hospital of Jinan University, No. 2 of Tangde West Road, Tianhe District, Guangzhou 510665, People’s Republic of ChinaEmail xukc@vip.163.comDuanming DuIntervention Department, The Second People’s Hospital of Shenzhen, No. 3002 of Sungang West Road, Futian District, Shenzhen 518035, People’s Republic of ChinaEmail 13068872049@163.comBackground: Hydrogen therapy has been reported to convert exhausted programmed cell death receptor (PD-1)+CD8+ T cells to PD-1-CD8+ T cells, in advanced colorectal cancer patients, which is associated with significantly prolonged survival.Case presentation: A 72-year-old female patient presented with metastatic gallbladder cancer and underwent symptomatic treatment combined with hydrogen therapy. The tumors were initially enlarged and displayed increased tumor marker expression following hydrogen inhalation therapy, after which they continued to remit, similar to the pseudo-progression that occurs after anti-PD-1 treatment. During one month of hydrogen therapy, the patient’s gallbladder and liver tumors continued to progress, and intestinal obstruction occurred. The intestinal obstruction was gradually relieved after symptomatic treatment, and the metastases in the abdominal cavity gradually decreased in size, anemia and hypoalbuminemia were corrected, and both the lymphocyte and tumor marker levels returned to normal. The patient was able to resume normal life two and a half months after hydrogen inhalation and survived over 10 months.Conclusion: This is the fi