Dissecting cellulitis of the scalp treated with tumour necrosis factor-α inhibitors: experience with two agents

Dissecting cellulitis of the scalp (DCS) also known as perifolliculitis capitis abscedens et suffodiens, is a rare but distinctive, chronic suppurative condition.(1) Fluctuant nodules with interconnecting sinus tracts draining pus and blood can lead to scarring alopecia and keloid formation.(2) DCS can be painful, malodorous and disfiguring. While the exact pathogenesis is unknown, DCS can be associated with acne conglobata, hidradenitis suppurativa (HS) and pilonidal sinus, termed the follicular occlusion tetrad. This article is protected by copyright. All rights reserved.