Perifoliculitis capitis abscedens et suffodiens, dissecting folliculitis, dissecting cellulitis, or Hoffman disease is a rare, inflammatory and chronic condition, which affects the scalp of young black men, mainly characterized by the appearance of nodules and abscesses that drain purulent material with fistulas and pathways, leading ultimately to scarring alopecia. At present, this condition i...

The acronym of SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis and osteitis) combines a cluster of cutaneous and musculoskeletal manifestations, such as hyperostosis of bones of the anterior chest wall associated with acne fulminans and hidradenitis suppurativa. There are no validated diagnostic criteria in children. Nonsteroidal anti-inflammatory drugs are not always sufficient, and ...

Sir, Anti-tumour necrosis factor alpha (TNF-α) agents, such as infliximab, adalimumab and etanercept, are remarkably effective in the treatment of rheumatoid arthritis (RA), Crohn's disease and psoriasis vulgaris (1–4). Recent case reports have described the treatment of hidradenitis suppurativa (5) and acne conglobata (6) with infliximab. Regardless of the dramatic improvement in symptoms, it ...