23.Anthracosis pulmonis

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23.Anthracosis pulmonis The product is an example of exogenous pigment deposition in the lung - coal dust. Inhaled dust particles smaller than 5 microns mukotsiliarnata overcome the barrier of traheobronhialnoto tree and reach the alveoli where phagocytosed by alveolar macrophages. Phagocytosed dust particles, they are called macrophages koniofagi and the process is referred to as antrakoza. Histologically visible koniofagi whose cytoplasm contained black powder inclusions. After the death of koniofagite antrakotichniyat pigment is deposited in the interstitial connective tissue - in the walls of the alveoli, in the course of Sep subplevrano, peri-bronchially.

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