Prolonged Inhalation Exposure to Coal Dust on Irradiated Rats and Consequences

Figure 6

Histological structure of rat lungs 90 days after a single irradiation at a dose of 6 Gy in combination with exposure to coal dust every 4 days for 4 hours: staining with hematoxylin and eosin. (a) Hyperplasia of peribronchial lymphoid tissue against the background of peribronchial and perivascular fibrosis of the lung stroma, zoom x180; (b) fibrosis of the arteriole wall in the lung interstitium, perivascular infiltration with lymphocytes, zoom x160; (c) hypertrophy of muscle-elastic fibers in the wall of the arterial vessel of the lung stroma, zoom x200.

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