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. 2022 Feb 2;388(2):417–438. doi: 10.1007/s00441-022-03593-1

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© The Author(s) 2022

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Fig. 14 — Representative transmission electron images of ultra-thin sections of ALO + CP rat lung. a. showing patent alveolar lumen (AL), apparent normal pneumocytes type II (PII) that have rounded euchromatic nucleus (N), pneumocytes type I (P1) have flat nucleus (N) and double blood capillaries (bc) contains red blood cells (Rbcs). b. Another magnification shows interalveolar septa with pneumocytes type II (PII) with rounded euchromatic nucleus (N) and full lamellar bodies (Lb) in its cytoplasm. Short microvilli on the cell surface (mv) can be observed. c. Another image shows interalveolar septa that have eosinophile (en) with shrunken nucleus (n) and electronic dense bodies (arrowhead). Exfoliated macrophage (M) with vacuoles (v) and pseudopodia (short arrow) can be seen in the alveolar lumen (AL)