File:Urinary analysis and diagnosis by microscopical and chemical examination (1906) (14598170198).jpg

Identifier: urinaryanalysi00heit (find matches)
Title: Urinary analysis and diagnosis by microscopical and chemical examination
Year: 1906 (1900s)
Authors: Heitzmann, Louis, 1864- (from old catalog)
Subjects: Urine Diagnosis
Publisher: New York, W. Wood and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Fig. 67.—Blood Casts (X 500). C, Casts from convoluted tubules; N, from narrow tubules; S, from straight collecting tubules. let fever and diphtheria, they may be seen in small numbers one or twoweeks after the first symptoms of the nephritis have set in. Granular casts are either perfectly regular and have sharply definedcontours, or they are more or less curved, or appear curved at one sidewhile they are straight at the other. Their ends are either rounded orpartly broken, and they may be broader at one place and narrower inanother—a peculiarity especially pronounced in those from the narrow TUBULAR CASTS. 139 tubules. Their degree of refraction changes considerably, and they some-times appear yellowish, at other times colorless. The granulation of these casts varies to a great degree, some beingcoarsely granular, others finely granular, still others partly the formerand partly the latter. They may appear coarsely granular at both ends,
Text Appearing After Image:
Fig. 68.—Granular Casts (X 500). C, Casts from convoluted tubules; N, from narrow tubules; S, from straight collecting tubules. finely granular in the centre, or finely granular above and below andcoarsely granular in the centre, the gradations being many. Granular casts are probably due in most cases to a disintegration ofthe kidney epithelia, which will commence after a varying length of time.In those cases which have not as yet become chronic, the disintegration 140 VEINABY ANALYSIS AND DIAGNOSIS. of the epithelia can be studied under the microscope in all the differentstages. In cases of long duration the granules become changed intoglistening fat-granules and -globules. 5. Fatty Casts (see Fig. 69).—True fatty casts are always secondaryproducts of epithelial and granular casts, therefore their size and shape

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