Asbestosis, light micrograph

Asbestosis, light micrograph

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Credit: PR J.L. KEMENY, ISM/SCIENCE PHOTO LIBRARY

Caption: Asbestosis. Coloured light micrograph of an asbestos fibre in a bronchalveolar lavage (lung wash) sample. Asbestosis is a lung disease caused by inhalation of asbestos fibres. Foreign bodies in the lungs are normally engulfed (phagocytosed) by macrophages (scavenger cells). However, the needle-like shape of the asbestos fibres puncture the macrophages. When the macrophages burst, they release their contents into the lung tissue and scar tissue is formed. As the scar tissue builds up, the lungs become stiff. Asbestosis is linked to the development of cancers of the pleural membranes that surround the lungs. Magnification: x300 when printed 10cm wide.

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Keywords: asbestos fibre, asbestosis, blue, bronchoalveolar lavage, diagnosis, diagnostics, disease, indestructible, industrial, industry, light micrograph, light microscope, lung, lung wash, medical, medicine, needle, one, pulmonary, sample, single, specimen, technological, technology

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