Licence: Public Domain Mark
Credit: Outlines of human pathology / by Herbert Mayo. Source: Wellcome Collection.
Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.
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![the long bones, are liable to be affected. From puberty to five-and-twenty or five-and-tliirty the lungs are especially obnoxious to tuberculous disease. In thus signalizing certain epochs as particularly perilous to particular organs, it must be at the same time stated, that each of these organs is liable to be affected at other periods of life. Upon the whole, the determination of stru- mous action upon one organ may be viewed as rendering the others less liable to it. b. Pulmonary tubercle. In the lungs, tuberculous matter occurs either in minute spheroids, or in larger masses, or in general infiltration. \u. 76.] Andral attributes to Magendie and Cruveihlier the origi- nation of the opinion, that tuberculous matter may be formed in the extremities of the bronchial tubes. This view, con- firmed by Andral himself, is well illustrated in the draw- ings of Dr. Carswell, from specimens in which the air-cells and minute bronchial tubes were filled with tubercle. Some- times numerous detached tuberculous granules are seen; sometimes all the air-cells of a lobule are filled with a com- mon infiltration. The larger spheroids of tuberculous matter in the lungs, as in the liver, and kidneys, and on the brain, appear to be interstitial. The lungs are rarely the seat of tubercle alone : two other deviations from the natural state commonly are found com- bined with it. One of these consists of little greyish spheres, of different degrees of consistency, that were originally described by Bayle, who considered them as a formation sui generis, and constituting their own species of consumption. Andral de- termined the true nature of these bodies, detecting them in their different stages; in one of which they are soft, gelati- nous, of a reddish colour; in the second, white, firmer, almost cartilaginous. These grey tubercles were supposed, by Laen- nec, to be the matrices of true tubercles. Andral has shown, that this is not their history :—not leading to true tubercles, though often coexisting with them, they are products of a partial inflammation, occupying a few of the air-cells, and filling them with lymph.](https://iiif.wellcomecollection.org/image/b21066735_0540.jp2/full/800%2C/0/default.jpg)
