<unk> s (furuncles) are a localized deep suppurative necrotizing form of folliculitis which involve the dermis and the subcutaneous tissue. Staphylococcus aureus is the most common causative agent. Following an abrasion or cut, the pathogen uses the wound site to invade and colonize the hair follicle. This leads to the formation of tender, erythematous, perifollicular nodule. The<unk>  later becomes painful and fluctuant leading to discharge of pus and formation of necrotic plugs, which may leave a scar.
Boil pathophysiology
Itch pathophysiology
Linitis plastica pathophysiology
Allergy pathophysiology
Otitis externa pathophysiology
Starvation pathophysiology
Volvulus pathophysiology
Fournier gangrene pathophysiology