在光学显微镜水平上,再次观察了正常及增生食管上皮、原位癌及Ⅰ～Ⅲ级鳞状细胞癌的ConA受体。在正常食管上皮,表浅细胞及棘细胞的质膜上可见受体。在增生食管上皮,底层细胞和棘细胞的一些胞核有丰富的ConA受体。在Ⅰ～Ⅲ级鳞状细胞癌,随着癌细胞间变程度的增加,癌细胞核膜上的ConA受体更为密集。 At the light microscope level, ConA receptors in normal and proliferating esophageal epithelium, carcinoma in situ and grade Ⅰ-Ⅲ squamous cell carcinoma were observed again. In normal esophageal epithelium, superficial cells and spine cells can be seen on the plasma membrane receptors. In the proliferating esophageal epithelium, some nuclei of the basal cells and spine cells are rich in ConA receptors. In grade Ⅰ ~ Ⅲ squamous cell carcinoma, with the increase of the degree of cancer cells, ConA receptors on the nuclear membrane of cancer cells are more dense.