A Study of Experimental Pneumonitis in the Rabbit (Classic Reprint): Induced by the Intratracheal Injection of Dead Tubercle Bacilli: Induced by the ... of Dead Tubercle Bacilli (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from A Study of Experimental Pneumonitis in the Rabbit

A great deal of the morphological complexity of the lesions of the lungs in both acute and chronic tuberculosis is due to in?ammatory processes which do not present the characteristic features of tubercular in?ammation. When we have taken account of the miliary tubercles, both single and conglomerated, of the larger and smaller masses of epithelioid — cell growth which we call diffuse tubercle tis sue, and of the various aggregates of these — often in.a con dition of more or less advanced coagulation necrosis when we have further brought into line that series of more or less extensive in?ammatory consolidation of the lungs in which, without the development of characteristic tubercle tissue, coagulation necrosis and often disintegration of both lung and exudate occur, under the in?uence of the living growing tubercle bacillus — there still remains a series of intra-alveolar in?ammatory exudations about and among the more characteristic tubercular areas Whose cause and origin are not sufficiently understood. These exudations are sometimes fibrinous, sometimes epithelioid in character; sometimes they are largely composed of small spheroidal cells or, which is more frequently the case, all three forms of exudate are intermingled. No doubt a double infection sometimes occurs, so that associated with the lesions directly induced by the tubercle4: experimental pneumonitis IN the rabbit.

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