Kaufmann P, Sen D K, Schweikhart G
Cell Tissue Res. 1979 Sep 1;200(3):409-23. doi: 10.1007/BF00234852.
The classification of human placental villi was reviewed on the basis of material prepared by means of special methods. The material from in situ normal-term placentae was biopsied by aspiration into glutaraldehyde. The classification was made on the basis of light-microscopic observations of semithin sections, reconstructions from serial sections, and scanning-electron micrographs. The peripheral villous tree is roughly divided into stem (ramuli), intermediate and terminal villi. The intermediate villi may be further subdivided as mature and immature types, which are found between the stem and terminal villi. Some of the terminal villi possess a local specialization described as the neck region. The histological characteristics and the branching pattern of each type are described, and the basis of the proposed classification is discussed.
基于通过特殊方法制备的材料，对人胎盘绒毛的分类进行了综述。原位足月胎盘的材料通过吸入戊二醛进行活检。分类是基于半薄切片的光学显微镜观察、连续切片的重建以及扫描电子显微镜图像。外周绒毛树大致分为主干（分支）、中间和终末绒毛。中间绒毛可进一步细分为成熟型和未成熟型，它们位于主干和终末绒毛之间。一些终末绒毛具有一种被称为颈部区域的局部特化结构。描述了每种类型的组织学特征和分支模式，并讨论了所提出分类的依据。
