Alpaugh H B, Johnson F B
Scan Electron Microsc. 1984(Pt 2):969-72.
The occurrence of silicon dioxide in human urinary calculi is more common than generally believed. During a 3 year study we have analyzed about 750 human urinary calculi using the scanning electron microscope and x-ray crystallographic methods. Silicon dioxide of the alpha quartz variety was found to be the principal constituent in calculi from 5 male patients. Some of the patients were recurrent stone formers and 1 patient has previously produced a silicon dioxide calculus. In none of the 5 cases was there any history of gastric disorders or of any ingestion of antacids in the form of magnesium trisilicate. Some of the silica particles have a morphology typical of glacial sand.
二氧化硅在人类尿路结石中的出现比一般认为的更为常见。在一项为期3年的研究中，我们使用扫描电子显微镜和X射线晶体学方法分析了约750颗人类尿路结石。发现α-石英型二氧化硅是5名男性患者结石的主要成分。其中一些患者是复发性结石形成者，1名患者曾排出过二氧化硅结石。这5例患者均无胃部疾病史或服用过硅酸镁形式的抗酸剂。一些二氧化硅颗粒具有典型的冰川砂形态。
