In this study, PAS+Alcian blue stain played a less importament role in diagnosis of gastric cancer except for mucinous adenocarcinoma.

• 26.；9%25之曾为阴性的生检报告，可因资深病理医师的复查而得到癌之确诊，若以阳性率来看（包括第四羣），则高达53