Manual of pathological anatomy . y, but in anadvanced stage of degeneration. These two forms are, however,comparatively rare; there are also mixed or intermediate forms. Parenchymcttous or Tubular Nephritis ; sometimes called FattyDegeneration.—In this form of renal disease, the kidney is consider-ably enlarged, even more, sometimes, than in acute hypersemia;both kidneys have been found weighing twenty-three or even thirtyounces ; it is generally pale, sometimes of an opaque greyish-white, with mottling spots or streaks of red; its capsule peelsofi ;^dily; the surface is smooth, and tole
Manual of pathological anatomy . y, but in anadvanced stage of degeneration. These two forms are, however,comparatively rare; there are also mixed or intermediate forms. Parenchymcttous or Tubular Nephritis ; sometimes called FattyDegeneration.—In this form of renal disease, the kidney is consider-ably enlarged, even more, sometimes, than in acute hypersemia;both kidneys have been found weighing twenty-three or even thirtyounces ; it is generally pale, sometimes of an opaque greyish-white, with mottling spots or streaks of red; its capsule peelsofi ;^dily; the surface is smooth, and tolerably uniform, orpresents opaque spots, while, rarely, granulations may be just MORBUS BRIGHTII. 681 beginning to become prominent. The surface of a section showsthe thickness of the cortical substance much increased, and themedullary cones also somewhat enlarged, and markedly striated,so as to resemble a plume of feathers ; they are usually more con-gested than the cortex. The renal tissue in the latter part appears Fig. 2, Cortical tube, infarcted with epithelium, and bulged in a good part of its extent. 3, Cortical tube, containing a dumb-bell crystal of large size. 4, Cortical tube, infarcted by epithelium, at (a) below it; some of the separate par-ticles are shown more highly magnified. 5, Bulky epithelium from cortical tube, the group at (a) are remarkably enlarged,those below them are more or less fatty. 6, Medullary tube much infarcted, the contents are seen escaping from the upperend. to be obscured or confused, as if some coagulating fluid had beeneflPused throughout it; it is commonly marked also by indicationsof commencing granulations similar to those which are seen on the 682 MORBUS BEIGHTII. capsular surface. The mucous membrane of the calyces and pelvisis somewhat swollen and reddened. The consistence of the kidney israther diminished, it is rather flabby and soft. The above descriptionapplies to many instances of an early degenerative condition, butther
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