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Figure 3 | Head & Neck Oncology

Figure 3

From: Lipomatous apocrine adenoma with syringocystadenoma papilliferum arising from the external auditory canal

Figure 3

Immunohistochemical studies revealed bilayer different lining cells. Positivity for cytokeratin-7 (Figure 3A) and GCDFP-15 (Figure 3B) in the inner layers of cylindrical cells of the tubules were shown. Positivity for p63 (Figure 3C) and S-100 protein (Figure 3D) in the outer layers of cuboidal or flattened cells with myoepithelial differentiation were shown. (Immunohistochemical stain, original magnification × 100).

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