Follicular occlusion triad (FOT) is a complex chronic inflammatory skin disease comprising hidradenitis suppurativa (HS), acne conglobata (AC), and dissecting cellulitis of the scalp (DCS; Hoffman’s or perifolliculitis capitis abscedens et suffodiens). While pathological mechanisms are responsible for common manifestations, exact underlying causes follicular have not yet been clearly identified...

forty-six cases of patients suffering from acne cystica (conglobata) were treated by low-dose dapsone plus folic acid (1 mg/day). this study has been performed on patients that had no response to other treatments. several essential and careful tests and examinations were performed on patients before and during treatment. ten patients of 46 above-mentioned cases were excluded from treatment prot...

Actinomycosis is a bacterial infection caused by Gram positive, anaerobic or microaerophilic bacilli, Actinomyces spp. These are higher prokaryotic bacteria belonging to the family Actinomyceataceae. The most frequent pathogen species encountered is Actinomyces israelii [1] but many different species have been described and are associated with pathogenic conditions specific to anatomical sites ...

1) Perifolliculitis capitis abscedens et suffodiens, currently called dissecting cellulitis of the scalp, is classifi ed as primary scarring alopecia since the 2000 consensus statement. Recent publications do not associate this condition with fungal colonization. 2 The 2013 paper “What’s new in cicatricial alopecia?” indicates an infl ammatory process that attacks and destroys the stem cells of...