Actinomycosis of the colon, liver, and lung / by R.F.C. Leith.
- Leith, R. F. C. (Robert Fraser Calder)
- Date:
- [1894?]
Licence: Public Domain Mark
Credit: Actinomycosis of the colon, liver, and lung / by R.F.C. Leith. 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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![lo completely resolve it. Even then, liowever, filamcntB, numerous cocci, and bacilli can be made out, especially at the margin of the dense parts. The cocci forms appear to be more numerous the denser the areas are. From these dense areas the fine thread-like filaments radiate outwards in every direction, so that for the outer two-thirds of the radius of the sphere-like mass, the constitution of the colony can always be clearly seen. These filaments have already been described, but it is now noted that far more frequently than before they present a homogeneous, unbroken, deeply-stained protoplasm. The minute bulbous ends of some of the filaments are well seen. The straight filaments especially show them; they stain as deeply as the rest of the protoplasm of the filament, and are not in any way differentiated from it. The bulbous end is occasionally seen to curve round after the fashion of a walking-stick. The hyaline or granular red material occupies the intervals between the filaments, and sometimes beyond their ends, except here and there where the pus corpuscles have invaded it, and lie between the ends of the filaments. A comparatively small number of cocci forms are seen to lie in this matrix of the peripheral part of the colony, They might be regarded as the ends of filaments cut trans- versely ; and, from their size, number, and distribution, I am inclined to regard this as the correct explanation of most of these peripheral cocci forms. A few short filaments, probably pieces broken off from long peripheral ones, are often seen lying in the pus some little distance away from the margin of a colony; in fact, it is not uncommon to see long filaments coming out here and there from the periphery of the colony, and advancing into the pus far beyond the others. Pus corpuscles may be seen which have ingested fragments of filaments. Clubs may be entirely absent from these colonies or present in considerable numbers. They occupy the peri- phery of the colony, generally extending a little distance l^eyond the ends of the filaments. They often appear in slightly thicker sections to lie tier upon tier, the lower always being a little further out than the one above it. They are nearly all of a slender club shape, though a few are pear- sh;i])nd. Thoy sliow a liomogonenus stnirturo, and. whWo the](https://iiif.wellcomecollection.org/image/b21467626_0024.jp2/full/800%2C/0/default.jpg)
