An<unk>  is a defensive reaction of the tissue to prevent the spread of infectious materials to other<unk> rts of the body. The organisms or foreign materials kill the local cells, resulting in the release of cytokines. The cytokines trigger an inflammatory response, which draws large numbers of white blood cells to the area and increases the regional blood flow. The final structure of the<unk>  is an<unk>  wall, or capsule, that is formed by the adjacent healthy cells in an attempt to keep the pus from infecting neighboring structures. However, such encapsulation tends to prevent immune cells from attacking bacteria in the pus, or from reaching the causative organism or foreign object. File:Blausen 0007<unk> .A diagram of an<unk> . file:Pyemic<unk> es of kidney.Pyemic<unk> es of a kidney.
Abscess
Necrotizing fasciitis
Dilaceration
Cellulitis
Joint effusion
Sebaceous cyst
Thrombus
Phlegmon