**Perifocal inflammation** (otherwise known as perifocal inflammatory process, perifocal inflammation) is a condition of the body in which, in close proximity to a pathological process of an inflammatory nature, reactive edema of the perivascular tissues – periphora – develops.
In many sources you can find a definition that does not reflect the full picture of perifocal inflammation: “An inflammatory process with a focus of destruction in a bed of healthy tissue.” This definition confuses the reader, since pathogenic foci are not always located in beds of healthy tissue. The peripleural tissues can be located both in the zone of healthy tissues and topologically in the pathological process, but one way or another the perifor is the reaction of the reticular cells located around the blood vessels and nerves to one or another disorder, the development of which in the perivascular zone leads to structural and functional changes. Thus, peripheral inflammation is inextricably linked to damage around deep tissue lesions. This is due to the fact that due to defects in the blood supply to the pathological area, the necessary substances do not flow into it - and first of all, these are nutrient solutions, deprived of which the cells begin to experience energy deficiency. If this process continues for a long time without a clear trend towards improvement, then micronecrosis of cells begins to appear in the area of the pathological focus, which in turn are not able to synthesize the necessary biologically active substances to maintain life. Because of