magnesium ammonium phosphate stone
magnesium ammonium phosphate stoneA type of kidney stone, which is more common in women, linked to urinary tract infections (e.g., by Proteus spp) that produce specific enzymes. MAPSs can become very large, fill the renal pelvis, develop a staghorn appearance, obstruct the urinary tract and cause kidney damage.
Stones obtained surgically or after being “passed” in the urine.
Light microscopy, optical crystallography, IR spectroscopy, X-ray diffraction.
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magnesium ammonium phosphate stoneStruvite stone A type of stone more common in ♀, linked to UTIs–eg, by Proteus spp, which produce specific enzymes; MAPSs can become very large, fill the renal pelvis, develop a staghorn appearance, obstruct the urinary tract and cause kidney damage
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.