Practical physiological chemistry : a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . Casts. disintegrated erythrocytes or leucocytes, the character of thecast varying according to the nature and size of the granules(Fig. 108, page 332, and Fig. 109, above). Thus we havecasts of this general type classified as finely granular andcoarsely granular casts. Granular casts, and in particular thefinely granular types, occur in the sediment in practically everykidney disorder but are probably especially characteristic ofthe sediment in inf
Practical physiological chemistry : a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . Casts. disintegrated erythrocytes or leucocytes, the character of thecast varying according to the nature and size of the granules(Fig. 108, page 332, and Fig. 109, above). Thus we havecasts of this general type classified as finely granular andcoarsely granular casts. Granular casts, and in particular thefinely granular types, occur in the sediment in practically everykidney disorder but are probably especially characteristic ofthe sediment in inflammatory- disorders. 334 PHYSIOLOGICAL (c) Epithelial Casts.—These are casts bearing upon theirsurface epithelial cells from the lining of the uriniferoustubules (Fig. no, p. 333). The basic material of this form ofcast may be hyaline or granular in nature. Epithelial castsare particularly abundant in the urinary sediment in acutenephritis. (d) Blood Casts.—Casts of this type may consist of ery-throcytes borne upon a hyaline or a fibrinous basis (Fig. Ill,below). The occurrence of such casts in the urinary sediment Fig. Blood, Pus, Hyaline and Epithelial , Blood casts ; b, pus cast; c, hyaline cast impregnated with renal cells; d, epithelial casts. denotes renal haemorrhage and they are considered to beespecially characteristic of acute diffuse nephritis and acutecongestion of the kidney. (e) Fatty Casts.—Fatty casts may be formed by the deposi-tion of fat globules or crystals of fatty acid upon the surfaceof a hyaline or granular cast (Fig. 112, p. 335). In order to TRIM: : SEDIMENTS. 335
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