title: Multiple renal silica calculi.
abstract: Investigation of a patient with a history of renal colic, who had taken the equivalent of 2 g magnesium trisilicate after every meal for many years, showed that he was forming silica calculi. The nature of the stone was diagnosed only after quantitative analysis.
mesh_terms: D000368:Aged; D000863:Antacids / Q000009:adverse effects*; D006801:Humans; D007669:Kidney Calculi / Q000139:chemically induced* / Q000378:metabolism; D008274:Magnesium / Q000009:adverse effects*; D008297:Male; D012008:Recurrence; D012822:Silicon Dioxide / Q000009:adverse effects* / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D000863:Antacids; D012822:Silicon Dioxide; D008274:Magnesium