Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . ering cloudy swelling. (See .<^ p. 241.) Hyperemia of the kidney is induced by ex- fig. posure to cold, by the administration of irritant substances normally excreted through the kidney, and it also occurs in some, but not in all, febrile conditions, and is present in the initial stage of acute nephritis. (See causes of acute Brights disease.) 1 Landsteiner, Wien. klin. Woch., Oct. 10, 1901. 11 Policlinico, Nov1902. Natason, Wien. klin. Woch., July 16, 1903, p. S57. Landstemer andM
Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . ering cloudy swelling. (See .<^ p. 241.) Hyperemia of the kidney is induced by ex- fig. posure to cold, by the administration of irritant substances normally excreted through the kidney, and it also occurs in some, but not in all, febrile conditions, and is present in the initial stage of acute nephritis. (See causes of acute Brights disease.) 1 Landsteiner, Wien. klin. Woch., Oct. 10, 1901. 11 Policlinico, Nov1902. Natason, Wien. klin. Woch., July 16, 1903, p. S57. Landstemer andMucha, Centralbl. f. allg. Path. u. path. Anat., Sept. 30, 1904, p. 752. Fig. 315.—Kidney, SHOwnxo Granular and Fatty Degen-erations OF THE Cortex, from a C.^se of PERNiaousAnemia. Osmic add preparation. Parts of three convoluted tubes andone collecting tube are show-n. The epitheliurn of the twocollecting tubes near the center of the drawing is the seat ofadvanced granular and fatty change. The protoplasm isgranular and fragmenting, and contains droplets of fat thathave been blackened by the osmic 316.—Cloudy Swell-ing OF the EpitheliumLining a Kidney Tu-BITLE.—(Flutter er.) OK Till-: IKlNAkV (i l.:C, A \ S . 637 Morbid Anatomy.—The organ is somewhat hirger than normal, soft,and, on section, drijis blood. The cortex is very mucli darker thanthat of the normal organ, and is striated, while the medullary portionmay be almost })urj)lish. Microscopic examination usually shows dis-tention of the entire vascular area, and, at i)oints, rhexis; cloudy swell-ing is extremely likely to accom])any the condition. Congestion of the kidney arises as the result of impeded venouscirculation, such as may occur in chronic heart or lung diseases, or,locally, from pressure on the renal veins by abdominal tumors, ascites,and a very much enlarged pregnant uterus. The mt^st advanced formof congested kidney is the so-called cyanotic kidney of chronic heartdisease. (Seep. 518.
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