Analysis of urinary calculi in adults. Attempt of correlations between morphology and composition
Reveillaud, R.J.; Daudon, M.; Protat, M.F.; Ayrole, G.
European Urology 6(3): 161-165
1980
ISSN/ISBN: 0302-2838 PMID: 7371663 Document Number: 167252
The analysis of 322 urinary calculi in adults by microdissection, IR spectromorphometry and microchemistry has shown that stones could be classified in several groups according to their morphology and composition: 8 morphological types have been defined (2 for the oxalic, 2 for the uric, 2 for the phosphatic and 2 for the cystinic stones). Correlations between morphology and composition were established dividing the calculi into 10 categories, 4 for the pure forms and 6 for the mixed forms; the total includes .apprx. 94% of the calculi analyzed. An 11th category gathering various lithiases (rare or with multiple components) represents 6% of the cases. The study of the localization of the component in stones emphasizes the high frequency of Ca phosphates in the nucleus of oxalic lithiases: 80% in mixed forms, in which the oxalate is the main constituent.