PMC3806671_01
MUC 5AC was positive in the gastric foveolar epithelium of the surface (arrow). Immunostaining was not observed in the pyloric glands. x100.
crg-0007-0392-g01.jpg
PMC3806671_01_crg-0007-0392-g01.jpg
F1
On immunohistochemical examination, while MUC 5AC was positive in the gastric foveolar epithelium that covered the surface of the polyp and was negative in glandular structures, MUC 6 was found to be positive in the glands and negative on the surface of the polyp (fig. 1, fig. 2).
A glandular structure that was covered with cells having hyperchromatic nuclei in a focal area attracted attention. The cigar-shaped hyperchromatic nuclei that presented pseudostratification were considered as high-degree dysplasia since they reached up to cellular surface (arrow). H&E, x40.
crg-0007-0392-g03.jpg
PMC3806671_01_crg-0007-0392-g03.jpg
F3
This area was considered as high-degree dysplasia since hyperchromatic nuclei had reached up to cell surface (fig. 3).