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  • Title: [Coralliform calculi and recurrent urinary infection: a case of newberyite calculi (MgHPO4.3H2O)].
    Author: Uebelhart D, Wisard M, Véry JM.
    Journal: Schweiz Med Wochenschr; 1984 Nov 24; 114(47):1689-94. PubMed ID: 6393327.
    Abstract:
    In some 20% of cases urolithiasis is directly linked to chronic urinary tract infection by urea-splitting bacteria and essentially Proteus mirabilis. The stones are generally composed of struvite and carbonate apatite, which usually occur as the staghorn calculi feared because of their obstructive and infectious consequences which cause important renal damage. A case is described of newberyite calculus in a woman with chronic urinary infection. Newberyite is thought to be a breakdown product of struvite in particular physico-chemical conditions, and is a very rare constituent of urolithiasis. X-ray diffraction and infrared spectroscopy were used to identify the constituent. Clinical and technical investigations are briefly described, and the literature is reviewed.
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