[Diagnostic possibilities of a crystallographic method in pyelonephritis in children]

Diagnostic potentialities of the crystallo-optic++ analysis of cupric chloride crystallographs++ were studied in 76 children with pyelonephritis and in 50 children with glomerulonephritis. The structural and morphological characteristics of cupric chloride crystallization under the influence of the urine from children with pyelo- and glomerulonephritis may serve as the additional differential-diagnostic signs of the diseases. The use of raster electron microscopy widens the diagnostic potentialities of the crystallographic method. Different dimensions of the little crystals formed as a result of isomorphic replacement of copper atoms by potassium ions (and, possibly, by sodium ions) and in the presence of urea and creatinine underlie the differences in cupric chloride crystallographs.