Fig.4. A mixed neoplasm with solid component and pseudopapillary core was discovered on histological examination. CD10, CD56, PR, and B-catenin were expressed, however CAM5.2, chromogranin and trypsin were not. A: HE 100x; B: HE 400x; C: PR 100x; D: B-catenin 400x; E: CD10 400x; F: CD56 400x.