Granuloma Malignant

Granulomatous processes are the result of damage to the host's own cells by immune cells with the formation of granulomas. The vast majority of granulomas are fibrosing in nature, but some granulomas are prone to malignant degeneration. This process is most easily traced in the case of tuberculosis of the lungs and paranasal sinuses. Predisposing factors for the development of granuloma are chronic respiratory diseases, trauma, foreign bodies, long-term smoking, as well as exposure to strong chemicals such as phenol and its derivatives, arsenic and other toxic chemicals. The pathognomonic sign of granuloma is an x-ray examination, which determines darkening (infiltration) of the lung tissue and a significant decrease in its transparency. Granulomas of any location are prone to a benign course, are characterized by slow growth and do not lead to the formation of pulmonary hemorrhages and decay cavities. As a rule, granuloma should be considered primarily as a phase of the inflammatory process preceding normal resorption or scarring of the resulting granuloma. In some cases, a slow-moving tumor process forms in