Fig 3. Representative images of three different varieties of MUC21 immunohistochemical expression.
MUC21P (A) and MUC21C (B) were expressed in lepidic elements with low papillary structure (yellow arrow) and micropapillary (mPAP) elements (blue arrowhead). MUC21D (C) was expressed only in mPAP elements (blue arrowhead). Magnification of all images is 100×.