title: [Calculi with large oxalate crystals (1st part)].
abstract: This is the introduction to the study of calculi which have large oxalate crystals. Calculi which are divided into three groups according to their other, non-oxalic compounds, which will be studied separately in three consecutive articles. Most of those large crystals are spectral and in spite of the fact that the calculi belonging to any group have the same components, the same formation mechanism and the same fundamental structures, they are not exact replicas of a prototype but, on the contrary, they all show a small difference from the previous and following ones which may lie in the duration of their development, in the amounts of their components or in the distribution of these components within them.
mesh_terms: D003460:Crystallization; D006801:Humans; D007669:Kidney Calculi / Q000145:classification / Q000473:pathology*; D010070:Oxalates / Q000032:analysis*
chemical_list: D010070:Oxalates
vernacular_title: Cálculos con grandes cristales de oxalatos (primera parte).