多発性巨大膀胱結石とその走査電子顕微鏡学的研究

Abstract

This report deals with a case of multiple giant vesical calculi of a 73-year-old male, who visited our clinic with a history of retardation in urination for a few years. Four stones were removed and weighed 105.6 g, 104.0 g, IS.S g and 16.5 g, total 244.6 g, and there were the fiftieth giant stone in our country. The compositions were proved to be magnesium-ammonium-phosphate-oxalate with ammonium-urate by the method of infrared spectrophotometry (KBr). Each calculus was then split open with a scalpel to give two approximately equal halves, and fractured surfaces were examined with the scanning electron microscope after coating with Au-Pd.