Levison D A, Crocker P R, Smith A, Blackshaw A J, Bartram C I
J Clin Pathol. 1984 May;37(5):481-7. doi: 10.1136/jcp.37.5.481.
The various light and scanning electron microscopic appearances of barium sulphate in smears and in histopathological lesions in sections are illustrated. One type of barium sulphate (E-Z-HD) includes much larger, bright birefringent particles and has very different appearances from other widely used types. Such larger particles in sections were not originally suspected to be barium sulphate and were identified only by energy dispersive x ray analysis in a scanning electron microscope. This form of barium sulphate is used for double contrast upper gastrointestinal radiography, and is not thought to have been responsible for the lesions in which it has been observed by us.
文中展示了硫酸钡在涂片以及组织病理学切片病变中的各种光学显微镜和扫描电子显微镜下的表现。一种硫酸钡（E-Z-HD）包含更大、明亮的双折射颗粒，其外观与其他广泛使用的类型有很大不同。切片中的这种较大颗粒最初并未被怀疑是硫酸钡，只是通过扫描电子显微镜中的能量色散X射线分析才得以鉴定。这种形式的硫酸钡用于双对比上消化道造影，我们认为它并非其所观察到的病变的病因。
