Follicular occlusion tetrad: Clinical case

Abstract

Follicular occlusion tetrad encompasses four clinical entities with similar pathophysiology, including suppurative hidradenitis, acne conglobata, dissecting cellulitis of the scalp and pilonodal sinus. Although the exact pathogenesis of this group of pathologies is unknown, all the evidences suggest that they share the same pathological process initiated by follicular occlusion in areas bearing apocrine glands. The case of a 22-year-old patient manifesting typical clinical characteristics is presented.