Some effects of chronic irritation upon living tissues, being first steps in a rational study of cancer / by D'Arcy Power.

  • Power, D'Arcy, Sir, 1855-1941.
Date:
[1893]
Catalogue details

Licence: Public Domain Mark

Credit: Some effects of chronic irritation upon living tissues, being first steps in a rational study of cancer / by D'Arcy Power. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    though it is ohvious from tlic amount of chromatin present tliat a certain number of epitlielial cells must have undergone complete disintegration. The collections of corpuscles have given rise to a variety of interpretations, some observers de- scribing them as cells undergoing endogenous gemmation, others as parasites. Tliere is no doubt, however, as to their true nature; they are minute masses of leucocytes and nothing more, and the constituent cells are identical with the cells which are so widely scattered in the inflamed sub- mucous tissue. It happens in a small proportion of cases that some of the epithelial cells completely disappear after irritation and leave nothing but a space behind. The spaces formed in 9 —The vaeinal epithelium of a rabbit showing a larger collection of white corpuscles lying amongst the cells in a well-defined capsule X 400. this manner are not due to the cells dropping out, but appear to be the result of advanced degenerative changes allecting the entire cell, or in some cases, perhaps, to still further changes occurring in connection with the mmute masses of leucocytes just described. These spaces are shown in Figs. 11 and 12. Similar appearances are frequently seen in cases of Paget's disease of the nipple.