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Updated: May 31, 2025
In the same group are three or four glands which lie entirely under cover of the upper end of the sterno-mastoid muscle, and surround the accessory nerve before it perforates the muscle. The deep cervical glands are commonly infected by tubercle and also by epithelioma secondary to disease in the tongue or throat.
Less frequently the trabecular framework is added to by the formation of new bone, resulting in a remarkable degree of sclerosis, and if, following upon this, there is caseation of the tubercle and death of the affected portion of bone, there results a sequestrum often of considerable size and characteristic shape, which, because of the sclerosis and surrounding endarteritis, is exceedingly slow in separating.
He evokes the metamorphoses of the potato, which, on the mountains of Chili, is merely a wretched venomous tubercle, and those of the cabbage, which on the rocky face of oceanic precipices is nothing but a weed, "with a tall stem and scanty disordered leaves of a crude green, an acrid savour, and a rank smell"; he speaks of wheat, formerly a poor unknown grass; the primitive pear-tree "an ugly intractable thorny bush, with detestable bitter fruit"; the wild celery, which grows beside ponds, "green all over, hard, with a repulsive flavour, and which gradually becomes tenderer, sweeter, whiter," and "ceases to distil its poison."
These three varieties or species so closely resemble one another that they were at one time regarded as identical, and we can well remember the wave of dismay which swept over the medical world when Robert Koch announced that the "perlsucht" of cattle was a genuine and unquestioned tuberculosis due to an unmistakable tubercle bacillus.
In those parts of the lungs that are not used, slimy secretions accumulate, irritating the air cells and other tissues, which become inflamed and begin to decay. Thus a luxuriant soil is prepared for the tubercle bacillus, the pneumococcus and other disease-producing bacilli and germs.
Although this may be regarded as a victory for the tissues, the cure, if such it may be called, is not necessarily a permanent one, for at any subsequent period, if the part affected is disturbed by injury or through some other influence, the encapsulated tubercle may again become active and get the upper hand of the tissues, and there results a relapse or recrudescence of the disease.
The differential diagnosis is often difficult, especially in the chronic nodules, in which it may be impossible to demonstrate the bacillus. The ulcerated lesions of farcy have to be distinguished from those of tubercle, syphilis, and other forms of infective granuloma. Treatment. Limited areas of disease should be completely excised.
Indeed he began to suspect that the worthy hermit was deceiving him, and was only fully convinced at last when he saw one of the birds. It was pure white, about the size of a thrush, and had a curious horn or fleshy tubercle upon its head.
Churchill, both high medical authorities, especially in lung disease, for which whisky is often recommended, come to the conclusion that "the opinion that alcoholic liquors have influence in preventing the deposition of tubercle is destitute of any foundation; on the contrary, their use predisposes to tubercular deposition."
Systematic examinations of all the bodies brought to autopsy in our great hospitals and elsewhere revealed at first thirty, then, as the investigation became more minute and skillful, forty, sixty, seventy-five per cent of scars in the apices of the lungs, remains of healed cavities, infected glands, or other signs of an invasion by the tubercle bacillus.
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