Is an uncommon scarring scalp hair loss disorder characterized by painful nodules, drainage of puss, sinus tracts, keloid/ thick scar formation, and scarring alopecia. It most commonly affects black males between the ages of 20 and 40. The cause of DC is unknown but may have a genetic predisposition with autosomal dominant inheritance. It may be triggered shaving and other scalp irritants (i.e. helmets). DC may be associated with Hidradenitis suppurativa, acne conglobata, pilonidal cysts, and secondary bacterial infections. It can be managed with oral antibiotics, oral isotretinoin, tumor necrosis factor (TNF) inhibitors, and surgical excision.
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