Pathological and Imaging Findings of Infectious and Inflammatory Diseases of Chest

Abstract

Inflammation is the common pathological basis of infectious and noninfectious lesions. The basic lesions of inflammation include deterioration, exudation, and hyperplasia. Deterioration means degeneration and necrosis of local tissues and cells of inflammation [1]. Exudation means that body fluids and cellular components in blood vessels in inflammatory lesions enter the surrounding tissue space through the vascular wall. Hyperplasia is the proliferation of tissue cells in inflammatory lesions stimulated by inflammatory factors. Infectious or inflammatory diseases have these three basic changes in pathology, but each disease is different in severity of changes. The three changes are interrelated and mutually transformed. For example, tuberculosis is mainly manifested by hyperplasia. If the body’s resistance declines, it can turn into deterioration and exudation.