. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. always due to the entry of a large numberof tubercle bacilli directly into the blood-current. Thisis effected either by means of a tuberculous ulceration inthe wall of a large vein, or by means of a tuberculosisof the thoracic duct. The most acute cases are those inwhich a tuberculous inflammation of a vein is found, bymeans of which large numbers of bacilli, within a com-paratively short time, find entry into the blood. Othercases are met with, especially in chi
. A Reference handbook of the medical sciences : embracing the entire range of scientific and practical medicine and allied science. always due to the entry of a large numberof tubercle bacilli directly into the blood-current. Thisis effected either by means of a tuberculous ulceration inthe wall of a large vein, or by means of a tuberculosisof the thoracic duct. The most acute cases are those inwhich a tuberculous inflammation of a vein is found, bymeans of which large numbers of bacilli, within a com-paratively short time, find entry into the blood. Othercases are met with, especially in children, where the tu-bercles are much larger and fewer in number, and wherethe disease takes a more protracted course, lasting formonths, whereas the more acute form may run its coursein two weeks. In such cases the entry of the bacilli intothe blood is much slower, and may take place only at in-tervals. In these there is often found a tuberculosis ofthe thoracic duct. The second form of the disease is the partial dissemi-nated tuberculosis of the lungs, and this is very muchmore common than the this form the eruption. ys& SE» /a S3 #t*SW The walls of the alveoliaround the tubercles showsome small-cell infiltrationThe solidity of the lungis due not only to thepresence of the tubecles, but to the exu-dation around thema n d is consid-erable differ-ence met within differentcases. Insome thetuberclesare largerand not soabundant,and on mi-c r o s copicexaminationthe evidenceso f inflamma-tion are not somarked. In almost allcases there is also adifference betweenthe tubercles in theupper lobes and thosein the lower. Thosein the upper lobes are larger and more opaque. Even inacute cases they may reach the size of mustard or pep-per seed. The cause of this difference in size is notclear. It is known that the upper lobes are by prefer-ence attacked, in that they offer better opportunities forbacilli entering the lung by the air-passages to invadethe tissue. In
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectmedicine, bookyear188
