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Analyse physique des calculs urinaires et biliaires

JAMA. 1937;109(25):2092. doi:10.1001/jama.1937.02780510066029.
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ABSTRACT

Dr. Pillet's small volume contains the results of his study of urinary and biliary calculi by physical means. He has subjected stones after comminution into minute particles to mineralogical examination, especially by means of the polarizing microscope. Crystallography, he states, is a science by which exact determinations can be made. These determinations should be made more widely known, as the use of a new method of examination brings with it new facts which may have an important value in the analysis of the subject of calculi formed in the human body. By the use of polarized light, each type of crystal found in urinary calculi has certain distinguishing physical characteristics which are constant. For example, oxalate stones are made up of small octahedrons and appear on section as lance shaped or as spheroliths depending on whether the urine is clear or contains blood. Calculi of uric acid have a lamellated

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