title: [A case of soft vesical calculi].
abstract: A case of soft vesical calculi is reported. A 72-year-old male, visited our clinic complaining of discharge of white muddy substance. KUB film revealed calcification in the vesical region. Urinalysis showed UTI, and culture of urine was positive for Proteus mirabilis. Thereafter, the patient suffered from discharges of similar calculi several times. Two of three infrared spectroscopic charts showed mixture of calcium phosphate and ammonium hydrogen urate and that of the remaining disclosed magnesium ammonium phosphate. An alcian blue-PAS double staining of this calculus revealed the presence of acid and neutral glycosaminoglycans, and bacterial colonies. These calculi were thought to be different from the so called 'matrix calculi'.
mesh_terms: D000368:Aged; D002130:Calcium Phosphates / Q000378:metabolism; D006025:Glycosaminoglycans / Q000378:metabolism; D006801:Humans; D008274:Magnesium / Q000378:metabolism; D017616:Magnesium Compounds; D008297:Male; D010710:Phosphates / Q000378:metabolism; D011512:Proteus Infections / Q000150:complications; D011513:Proteus mirabilis; D011859:Radiography; D000069877:Struvite; D014527:Uric Acid / Q000378:metabolism; D001744:Urinary Bladder Calculi / Q000150:complications / Q000000981:diagnostic imaging / Q000378:metabolism*; D014552:Urinary Tract Infections / Q000150:complications
chemical_list: D002130:Calcium Phosphates; D006025:Glycosaminoglycans; D017616:Magnesium Compounds; D010710:Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; D014527:Uric Acid; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; D000069877:Struvite; D008274:Magnesium; C485829:calcium phosphate, dibasic, anhydrous