struvite
Noun
Meaning
A crystalline mineral found in guano. It is a hydrous phosphate of magnesia and ammonia.
Source: Webster's dictionarySynonyms
Examples
Older children are at greater risk independent of age and sex. citation As with adults, most pediatric kidney stones are predominantly composed of calcium oxalate ; struvite and calcium phosphate stones are less common.
Struvite stones can grow rapidly, forming large calyceal staghorn calculi that can require invasive surgery such as percutaneous nephrolithotomy or even anatrophic nephrolithotomy for definitive treatment.
Struvite stones (triple phosphate/magnesium ammonium phosphate) have a 'coffin lid' morphology by microscopy.
This alkalinizes the urine, resulting in favorable conditions for the formation of struvite stones.