Three cases of pseudopelade of brocq that had been misdiagnosed as seborrheic dermatitis

Pseudopelade of Brocq is a rare, idiopathic, slowly progressive hair disorder that results in cicatricial alopecia. It is characterized by multiple, small, discrete, asymmetrical, smooth alopecic patches that show little clinical inflammation. Mild pruritus and diminished lesional sensation may also be present. In addition, mild perifollicular erythema may be detected. Seborrheic dermatitis presents as chronic, papular, scaly lesion of skin, and this can be seen on the scalp. Clinically, this disease is characterized by oily, erythematous, scaly lesion. Although both diseases originally have different clinical characteristics, the early and mild scalp lesions of both diseases sometimes mimic each other. Herein, we report on 3 cases of pseudopelade of Brocq that were misdiagnosed and treated as seborrheic dermatitis.