Unusual Myoid Differentiation in a Canine Benign Mixed Mammary Tumour

Figure 2

(a) Desmin expression of both thin elongated smooth muscle cells and large multinucleated striated muscle cells. IHC, 20x, scale bar 100 micron. (b) Calponin expression of both thin elongated smooth muscle cells and large multinucleated striated muscle cells, IHC, 20x, scale bar 100 micron. (c) Smooth muscle actin in elongated smooth muscle cells but not in the large striated muscle cells, IHC, 20x, scale bar 100 micron. (d) p63 negative in both smooth muscle and striated muscle cells, IHC, 20x, scale bar 100 micron.

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