Clinical, Cosmetic and Investigational Dermatology (Jul 2023)
Successful Treatment of Eruptive Pruritic Papular Porokeratosis in the Elderly with Tofacitinib: A Case Report
Abstract
Xingyu Mu,1,* Wen Li,2,* Ming Zhang,2 Changxiao Yang,2 Xianxu Yang,2 Dan Li,2 Yan Ding3 1The First Clinical College of Hainan Medical University, Haikou, Hainan, People’s Republic of China; 2Department of Dermatology, The Fifth People’s Hospital of Hainan Province, Haikou, Hainan, People’s Republic of China; 3Department of Dermatology, Affiliated Dermatology Hospital of Hainan Medical University, The Fifth People’s Hospital of Hainan Province, Haikou, Hainan, People’s Republic of China*These authors contributed equally to this workCorrespondence: Dan Li, Department of Dermatology, The Fifth People’s Hospital of Hainan Province, No. 8 Longhua Road, Longhua District, Haikou, Hainan, People’s Republic of China, Tel +8613807656023, Email [email protected] Yan Ding, Department of Dermatology, Affiliated Dermatology Hospital of Hainan Medical University, The Fifth People’s Hospital of Hainan Province, No. 8 Longhua Road, Longhua District, Haikou, Hainan, People’s Republic of China, Tel +8618689980361, Email [email protected]: Eruptive pruritic papular porokeratosis (EPPP) is a rare subtype of porokeratosis that presents as an acute exacerbation of an annular papule with a distinct peripheral hyperkeratotic ridge border and severe pruritus. EPPP is mainly reported in elderly East Asian men. Its etiology and pathogenesis are unknown. We hereby present a case report of EPPP in a 68-year-old Chinese male with persistent circumscribed papules on the extremities, accompanied by severe pruritus for one year. After the patient was given conventional medication, a new rash appeared on the patient’s extremities and he felt intense itching in the area of the rash. The patient was switched to oral tofacitinib treatment. The patient felt that the pruritus had largely disappeared after one month of oral dosing, leaving only brown pigmentation on the erythema of the extremities. The patient has been off the drug for 2 months. There was no pruritus or new rash during the follow-up period.Keywords: eruptive pruritic papular porokeratosis, porokeratosis, tofacitinib