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. Author manuscript; available in PMC: 2013 Jul 8.
Published in final edited form as: J Investig Dermatol Symp Proc. 2011 Dec;15(1):53–62. doi: 10.1038/jidsymp.2011.6

Figure 4. Localization and density of mast cells in human facial skin as shown by immunohistochemistry and quantitative analysis of stained dermis.

Figure 4

Immunoreactivity for tryptase was observed in erythematous rosacea (ETR, n = 9), papulopustular rosacea (PPR, n = 9), phymatous rosacea (PhR, n = 9),lupus erythematosus (LE; n = 9), and healthy skin (HS, n = 10; bar = 100 μm; a–e). The increase in mast cell density was statistically significant for all subtypes (ETR × 3.98; PPR × 4.41; PhR × 2.54), whereas mast cell density did not increase in LE (*P<0.05, **P<0.01; unfilled circles and triangle represent outliers) (f).