Report on the etiology and prevention of yellow fever . mbrane presents arborescent patches of congestion, orportions of the canal may be uniformly red from hyperasmia of the mucous coat; thecolor varies from pale red to a reddish brown, and is usually more marked in thelower portion of the ileum than elsewhere. The large intestine occasionally presentssimilar arborescent patches of congestion, but usually it has .a normal , we may say that the attention of pathologists has heretofore been so largelytaken up with the pathological histology of the organs which present the most


Report on the etiology and prevention of yellow fever . mbrane presents arborescent patches of congestion, orportions of the canal may be uniformly red from hyperasmia of the mucous coat; thecolor varies from pale red to a reddish brown, and is usually more marked in thelower portion of the ileum than elsewhere. The large intestine occasionally presentssimilar arborescent patches of congestion, but usually it has .a normal , we may say that the attention of pathologists has heretofore been so largelytaken up with the pathological histology of the organs which present the most nota-ble changes—liver and kidney—that the histology of the alimentary canal has been ETIOLOGY AND PREVENTION OF YELLOW FEVER. 149 somewhat neglected, and farther researches in this direction are desirable upon ma-terial obtained at the earliest possible moment after, death. The appearance of the liver in yellow fester is characteristic, at least so far as acutefebrile diseases are concerned. Usually it contains less blood than iu the normal con-. FiR. 7.—Patty infiltration of the liver cells, svith a moderate amount of small-celled infiltration, in acase of yellow fever. Material from Havana. ditlon, and is of a pale yellow or brownish yellow color, similar to that of newleather in its various shades; occasionally it is gorged with blood, and livid, deepblue, or dark purple iu color. In the victims of chronic alcoholism, it often presentsthe nutmeg appearance of cirrhosis. The dimensions do not differ materially f:omthe normal, but the consistence is modified by the fatty change, which gives thecharacteristic color, and the parenchyma is easily torn and more or friable. Onsection it is found to be drier than in the normal state, except in the comparativelyfew cases in which it is hyper;emic; these arc, as a rnle, cases which have provedfatal at a very early period—a fact which indicates that there is a stage of conges-tion antedating that of au;emia and fatty de


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Keywords: ., bookcentury1800, bookdecade1890, bookpubl, booksubjectyellowfever