Acne is a dermatological disorder that can be more commonly seen in adolescents as well as younger patients. The pediatric acne is classified according to the age groups as neonatal acne, infantile acne, mid-childhood acne, and prepubertal acne. The presentation, pathogenesis, differential diagnosis, and treatment of the disease vary in each age group. Early diagnosis is important to prevent the scar formation and determine the underlying abnormalities.
Part of the book: Acne and Acneiform Eruptions
Behçet disease (BD) is a chronic, relapsing, multisystemic vasculitis with unknown etiopathogenesis. It is widely accepted that an altered immune response triggered by an infectious agent or by an otoantigen in a genetically predisposed individual plays major role in the pathogenesis of BD. In this chapter, the role of infectious agents in the etiopathogenesis of BD was discussed.
Part of the book: Behcet's Disease