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. Author manuscript; available in PMC: 2018 Apr 13.
Published in final edited form as: Toxicol Pathol. 2009 Jun 1;37(5):594–598. doi: 10.1177/0192623309338055

Figure 2.

Figure 2

Olfactory mucosal histopathology of CRS smokers with different pack year histories. Sections were stained with Alcian blue, hematoxylin, and eosin and two olfactory mucosal regions from the same biopsy section were imaged with a 40× objective. A. <1 pack year with normal olfactory epithelium and goblet cell hyperplasia, B. 1 pack year, C. 7 pack years, D. 9 pack years, and E. 15 pack years. Asterisks = goblet cells, MG = mucus gland, BV = blood vessel, and arrowhead = basement membrane. Scale bar = 50µm.