Light micrograph showing a human lung affected by an acute pneumonia. At top is the pleura, which is very thickened. The lumen of the alveoli are occupied by an extensive acute inflammatory infiltrate, with a predominance of neutrophil granulocytes.

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Photo credit: © JOSE CALVO / SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: -, abnormal, acute, alveolar, alveoli, alveolus, granulocytes, histology, infiltrates, inflammatory, light, lm, lung, medical, medicine, micrograph, microscope, microscopy, neutrophil, oedema, pathohistological, pathohistology, pathology, pneumonia, pulmonary, respiratory, system, unhealthy, wall