Hydatids from the left lung, subsequently to the occurrence of typhoid fever, complicated with double pneumonia.

  • Black, Cornelius, 1822-1887.
Date:
[1853]
Catalogue details

Licence: Public Domain Mark

Credit: Hydatids from the left lung, subsequently to the occurrence of typhoid fever, complicated with double pneumonia. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    ciroen examined; but when present, which is very frequently the case, it is seen in bands, and isolated, slightly-branching, fibril las. The former are generally from •j-g-^th to of an inch in breadth, and are composed of fibrillae varying from tt.o'o TT.io-o'tli of an inch in diameter, which run side by side, sometimes in a slightly wavy direction, without branching or altering their relative distance to each other. The latter, on the contrary, pursue an isolated course, are about -g—L_th of an inch in diameter, slightly tubular, present nuclear enlarge- ments at irregular distances, and give off, here and there, a single branch. These fibres correspond in structure to the yellow fibrous tissue; whilst the others are similar to those constituting the white fibrous tissue. As a general rule, neither blood-vessels, lymphatics, nor nerves form a part of this layer of the hydatid; nevertheless, I have twice seen, in specimens the most organised, a few isolated capillaries present. The layer within this, which corresponds to the basement structure of mucous membrane, is not so uniformly set with nuclear points as the latter; consequently the epithelium does not observe such regularity and uniformity of extension as the epithelium of mucous membrane. It, on the contrary, exists in patches, which leave intervals occupied by irregularly deve- loped cells and minute, opaque, and semi-transparent bodies, most of which show a disposition to cell development. Some of these cells are non-nucleated ; others present one, and some- times several nuclei. Hence the former correspond with the exudation-cell, and the latter with the plastic-cell. Acetic acid and liquor potassse render them more transparent. By pro- longed contact with the latter they are ultimately destroyed. To ascertain chemically the proximate constituents of these bodies, five of medium size were boiled for two hours in dis- tilled water, in a porcelain capsule, over a spirit lamp, after which the fluid was evaporated to a drachm by measure, and then set aside to cool. After having cooled to the temperature of the surrounding air no jelly-like consistence of the fluid was observed. On adding three drops of the tincture of galls to one half of it, no palpable precipitate was produced; whilst the same quantity of the tincture, added to a solution of one grain