Calcium oxalate monohydrate (whewellite) renal lithiasis
Thomas, J.; Charransol-Maistre, G.; Barthelemy, C.; Thomas, E.; Taboury, J.A.; Taillandier, E.; Desgrez, P.; Legrand, J.C.; Arvis, G.; Steg, A.
Annales d'Urologie 19(2): 125-127
1985
ISSN/ISBN: 0003-4401 PMID: 4015050 Document Number: 255463
Pure calcium oxalate monohydrate lithiasis is rare--about 5 to 10% of total renal lithiases. The proportion is the same in men and women. Pure calcium oxalate stones are a polished dark brown color, and are very hard. They are visualized radiologically as regular and homogeneous. From a biological standpoint, this type of stone is frequently associated with normal calciuria and oxaluria. Pure calcium oxalate monohydrate stones rarely evolve.