Fig. 3From: Pulmonary epithelial–myoepithelial carcinoma without AKT1, HRAS or PIK3CA mutations: a case reportImmunohistochemical findings. a The cuboidal cells in the inner layer were positive for pan-cytokeratin (cytoplasm), and the outer layer of cells and polygonal and spindle cells were weakly positive for pan-cytokeratin (cytoplasm). b-d The cuboidal cells in the inner layer were negative for p63 (b), HHF35 (c) and S-100 (d), whereas the outer layer of cells and polygonal and spindle cells were positive for p63 (nucleus) (b), HHF35 (cytoplasm) (c) and S-100 (nucleus and cytoplasm) (d)Back to article page