消化管内腺体各处散在分布着许多分泌细胞,属 APUD 系细胞。这些细胞可被硝酸银染色,又称嗜银细胞或亲银细胞。此细胞在苏木精,伊红染色时(简称 H—E 染色)不能与其它细胞区别。硝酸银染色法为分辨该细胞提供了方便。但是硝酸银染色很难掌握,往往得不到满意的效果。本组根据1984年首届全国组织胚胎技术交流会资料,并加 Digestive tract scattered throughout the gland around many secretory cells, is an APUD line cells. These cells can be stained with silver nitrate, also known as argyrophilic cells or pro-silver cells. The cells in hematoxylin, eosin staining (referred to as H-E staining) can not distinguish with other cells. Silver nitrate staining provides a convenient way to distinguish the cells. However, silver nitrate staining is difficult to grasp, often without satisfactory results. This group according to the 1984 first national tissue embryo technology exchange information, and add