Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . a catarrhal inflammation, with hyi)eremia and infiltration of thesubmucosa; liquor sanguinis passes through the liasement membrane,and, reaching the surface, the necessary ferment is supplied bythe bacteria or the epithelial cells (probably the latter, as bac-teria may be introduced into the circulation of an animal withoutimmediate coagulation of the blood), and coagulation occurs. Some-times the membrane contains a few red blood-cells, which occa-sional! v are sutliciently numerous


Manual of pathology : including bacteriology, the technic of postmortems, and methods of pathologic research . a catarrhal inflammation, with hyi)eremia and infiltration of thesubmucosa; liquor sanguinis passes through the liasement membrane,and, reaching the surface, the necessary ferment is supplied bythe bacteria or the epithelial cells (probably the latter, as bac-teria may be introduced into the circulation of an animal withoutimmediate coagulation of the blood), and coagulation occurs. Some-times the membrane contains a few red blood-cells, which occa-sional! v are sutliciently numerous perceptibly to tinge the exudate;rarely hemorrhage into the membrane is conspicuous. That allpseudomembranous processes are due to the deposition of a fibrin-forming bodv has been strongly controverted. Wagner contendedthat the pseiidomembrane results from a fibrinous or croupous meta- See p. iiS. Sec p. 114- Seep. loo- See p. 127. * Si-e p. 113. •Seep. 126. See p. 1156. Seep. 13Q. » See p. 141. See p. 172. A tijixire this condition will be found tn the article on 274. . UK ISkldomkmbkank from Tonsil, OF DlPHTHKRlA. .1, .1. liarilli; the ixiintir from the lower A inan .-irea of uranular matcriiil. B. Cotti. C. Strands offibrin. The ivlUilar cli-nnnts prisint are s<|uamous epi-thelium, and |K)lyniorphnuilear and hyaline lfiikor\-tes. 552 SPECIAL PATHOLOGY. morphosis of the epithelivim associated with degenerative changes inthe cell nuclei. As Baumgarten^ has shown, the changes described byWagner are frequently easily detected, and it may be possible that someof the membranes are formed in the way suggested. It has also beenshown that the membrane may contain mucin, and that it often fails togive the characteristic stain reaction of fibrin (p. 252). It must not beforgotten that on various mucosas rapid alteration in the fibrin may occur, and that digestive auto-ly tic or like changes mayrob it of i


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