Minh H N, Smadja A, Lecomte D, Orcel L, Coupez F
Ann Pathol. 1982;2(2):141-8.
The squamo-cylindrical junction represents a transitional area of unstable epithelium. It consists of slightly differentiated cells which disclosed resemblance in morphological pattern with germinal cells of the basal layer in the exocervical squamous epithelium. These unstable cells, according to the authors, may be derived from the cranial, most cephalic extend of the sinusal vaginal plate which had formed the epithelium of the entire vagina and the vaginal portion of the cervix up to the squamo-columnar junction. Ultrastructural analysis disclosed no similarities between cells of the squamo-columnar junction and subcylindrical reserve cells which exhibited sometimes resemblance to the "mesenchymal cells" found within the surrounding stroma.
鳞状柱状交接处代表不稳定上皮的过渡区域。它由轻度分化的细胞组成，这些细胞在形态模式上与宫颈外鳞状上皮基底层的生发细胞相似。据作者称，这些不稳定细胞可能源自鼻窦阴道板的头侧、最头部延伸部分，该部分形成了整个阴道以及宫颈阴道部直至鳞状柱状交接处的上皮。超微结构分析显示，鳞状柱状交接处的细胞与亚柱状储备细胞之间没有相似之处，亚柱状储备细胞有时与周围基质中发现的“间充质细胞”相似。
