Photodiagnosis Photodyn Ther 2021 Mar 20;33:102103. Epub 2020 Dec 20.
Department of Dermato-venereology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China. Electronic address:
Perifolliculitis capitis abscedens et suffodiens (PCAS) is a rare chronic inflammatory dermatosis of the scalp, which is a refractory and recrudescent disease. Symptoms of PCAS include follicular papules, suppurative nodules, cysts, sinuses, fistulas, and these usually evolve into patchy alopecia or cicatricial alopecia, which seriously affects the beauty and quality of life of patients. In this paper, we report 3 cases of PCAS each of whom received 5% 5-aminolevulinic acid-based photodynamic therapy (ALA-PDT) combined with isotretinoin. Read More