An atlas of clinical microscopy . renal hsemorrhage we must, first of all, considerthat it is of a parenchymatous character—i. e., it rises from capil-lary vessels, and is therefore not copious. Coagula recognizablewith the naked eye do not originate, therefore, in the kidney. Forthe same reason we find in renal hsemorrhage the microcytes. (Seetext to Plate 26.) The frequent admixture of renal epithelium in haemorrhage ofthe kidney is also of importance (Plate 43). The reaction of the urine is only of negative value for diag-nosis ; it does not originate from the bladder if it is acid, and ifo
An atlas of clinical microscopy . renal hsemorrhage we must, first of all, considerthat it is of a parenchymatous character—i. e., it rises from capil-lary vessels, and is therefore not copious. Coagula recognizablewith the naked eye do not originate, therefore, in the kidney. Forthe same reason we find in renal hsemorrhage the microcytes. (Seetext to Plate 26.) The frequent admixture of renal epithelium in haemorrhage ofthe kidney is also of importance (Plate 43). The reaction of the urine is only of negative value for diag-nosis ; it does not originate from the bladder if it is acid, and ifotherwise the symptoms of a vesical catarrh can be excluded. Continued renal haemorrhage occurs most frequently in acutediffuse nephritis. In this case the blood and fibrin-cylinders andthe abundant albumen are characteristic. We observe further renal haemorrhage in acute hemorrhagicexanthemata and infectious diseases, in diseases of the renal vessels(embolus, atheroma), in neoplasms and trauma; further, in renalstones. PLATE 42. HemoiTha(?e of kidney Payers niicroscopi. PLATE 82 CLINICAL MICROSCOPY. PYELITIS Is often seen as a part phase of several general diseases, as puer-peral fever, typhus, diphtheria, scurvy, morbus maculosus Werl-hofii; further, of acute and chronic forms of nephritis. Like the inflammations of the parenchyma and the other uri-nary channels, it is spontaneously developed by large doses of ean-tharides, etc. Of special importance are the cases occurring through presenceof renal calculi; also those originating from ammoniacal decomposi-tion of the urine in the bladder. Pyelitis is frequently developed in pregnancy and in the lying-in state in consequence of vesical catarrh and by transfer of inflam-mation from neighboring parts. Colds are considered a frequentcause. Diagnosis.—The assertion that the urine of pyelitis is alwaysacid, and that of vesical catarrh always alkaline, is absolutely in-correct ; we often find inverse conditions. ISTe
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