论文部分内容阅读
作者用光镜和电镜观察了5例造釉细胞纤维牙瘤,并将观察的结果与正常的牙胚作了比较。在所有的标本中,都可以看到上皮巢、粘液样结缔组织、釉基质和前期牙本质。在间充质与上皮巢的相交处,可看到一列高柱状的上皮细胞,该处的间充质在结构上发生了变化,有一个无细胞带,含有P A S Azan、网状染色阳性的物质,与发育中牙胚的蕾状期相似。而在肿瘤的其它地方,无细胞带较大,且不含具有上述染色特性的物质;
The authors observed five cases of ameloblastoma with light microscope and electron microscope, and compared the results with normal tooth germs. In all specimens, epithelial neoplasms, mucoid connective tissue, enamel matrix, and predentin were visible. At the intersection of the mesenchyme with the epithelial nevus, a column of highly columnar epithelial cells is seen where the mesenchyme has been structurally altered. There is a cell-free band containing PAS Azan, a reticulocyte-positive substance , Similar to the buds of developing tooth germ. Elsewhere in the tumor, the cell-free band is larger and does not contain substances with the above-mentioned staining properties;