Photodynamic therapy combined with dermatosurgical approach for Perifolliculitis Capitis Abscedens et Suffodiens.

Perifolliculitis capitis abscedens et suffodiens (PCAS) is a kind of rare, chronic, suppurative and inflammatory scalp disease with aetiology and pathogenesis not completely understood. The treatment of PCAS usually represents a challenging problem with frustrating outcome (1). Photodynamic therapy (PDT) is a relatively new approach and is considered to be useful to treat tumors, bacterial and fungal infections (2-4). We report 9 cases of patients who suffered from PCAS in varying degrees. Photodynamic therapy combined with surgery were used in these cases and the results were satisfactory. In conclusion, photodynamic therapy may provide a new way to treat PCAS.