. A practical treatise on medical diagnosis for students and physicians . Calcium oxalate. Oxaluria. According to Beneke, oxaluria has its proximate cause inan impeded metamorphosis, an insufficient activity of that stage whichchanges oxalic acid into carbonic acid. When oxalates are constantly found in the urine, a condition of pro-found hypochondriasis is found to exist, but it has no necessary relation 666 THE URINE. to the oxaluria. An increase of oxalates in the urine is found in dia-betes, especially when there is diminution in the amount of sugar. Theyare in excess in certain forms of i
. A practical treatise on medical diagnosis for students and physicians . Calcium oxalate. Oxaluria. According to Beneke, oxaluria has its proximate cause inan impeded metamorphosis, an insufficient activity of that stage whichchanges oxalic acid into carbonic acid. When oxalates are constantly found in the urine, a condition of pro-found hypochondriasis is found to exist, but it has no necessary relation 666 THE URINE. to the oxaluria. An increase of oxalates in the urine is found in dia-betes, especially when there is diminution in the amount of sugar. Theyare in excess in certain forms of indigestion. Their constant passage maybe attended by pains in the back and loins. Flatulent and nervous dys-pepsia usually accompany the increase, and neurasthenia also may bepresent. Fig. Crystals of leucin (different forms). (Crystals of creatinin chloride of zinc resemble the leucincrystals depicted at a.) The crystals figured toward the right consist of comparatively impureleucin. (From Charles : Chemistry.) Cystin. Cystin occurs in the form of hexagonal prisms, either as irreg-ular masses or superimposed upon one another so as to form truncatedpyramids. It is a very rare sediment, but appears to be most commonin children and young male adults. Several members of the same fam-ily have been known to pass it. Its chief clinical significance arises fromthe fact that rarely it is the basis of calculi.
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