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. Author manuscript; available in PMC: 2015 Dec 8.
Published in final edited form as: Inhal Toxicol. 2012 Aug;24(9):570–579. doi: 10.3109/08958378.2012.697926

Figure 2.

Figure 2

Photomicrographs of lungs from control and silica-exposed rats. Lung samples obtained from control and crystalline silica-exposed rats were sectioned and stained with H & E (top panel) or Masson’s trichrome stain (bottom panel) as described in the text. The arrow and arrowhead in the H & E stained sections show type II pneumocyte hyperplasia and alveolar space filled with macrophages and neutrophils, respectively, in the silica-exposed rat lungs. The arrow and arrowhead in the trichrome stained sections show thickened alveolar septae and type II pneumocyte hyperplasia lining the alveolar septae, respectively, in the silica-exposed rat lungs Magnification: H & E = ×20; trichrome = ×40.