. The elements of pathological histology with special reference to practical methods . ween thepartially necrotic epithelial cells, which have lost their nuclei, lie pus-corpuscles andtheir broken-down nuclei; e. Papillae of cutis infiltrated with small cells. pyococci takes place in these diseases, and the micro-organisms inquestion can then be detected in the complicating morbid con-ditions and in the blood, whilst in variola they are also found inthe pustules. To the injlammations which affect not only the cutis hut also PHLEGMON AND FURUNCLE 391 tlw subcutaneous connective tissue belong ph
. The elements of pathological histology with special reference to practical methods . ween thepartially necrotic epithelial cells, which have lost their nuclei, lie pus-corpuscles andtheir broken-down nuclei; e. Papillae of cutis infiltrated with small cells. pyococci takes place in these diseases, and the micro-organisms inquestion can then be detected in the complicating morbid con-ditions and in the blood, whilst in variola they are also found inthe pustules. To the injlammations which affect not only the cutis hut also PHLEGMON AND FURUNCLE 391 tlw subcutaneous connective tissue belong phlegmon and furuncle. Theformer, which is caused by the pyococci, always begins in thesubcutaneous connective tissue (or in still deeper connective-tissuestrata), only reaching the cutis at a later period. An abundantexudation is always present, which collects chieliy in the spaces ofthe connective tissue, and is in most cases fibrinous or fibrino-purulent. Here and there necrosis of tissue may result, or formationof abscesses, and the epidermis may also become elevated into Fig. 109.—Variola H^emorrhagica. x 285. (Hsematoxylinand eosin.) a, Capilluryvessel in a cutaneous papilla; at />, the endothelial cells of the vessel are raised ;f, Small-celled infiltration in the neighbourhood of blood-vessels ; d, Extravasation ofblood, partly divided into rounded or band-like groups, partly more evenly distributed. The cocci are not, as in erysipelas, confined to definite localities, butmay be present everywhere and in large numbers. Under certaincircumstances they also penetrate into the lymphatics and blood-vessels, in which they may then give rise to inflammations, andmay even cause pyt^emia. (See also p. 119.) The furuncle is reallya circumscribed phlegmon. It invariably develops in the vicinity ofhair-follicles and cutaneous glands, by which the inflammatory ex-citants (usually Staijhylococcus pyogenes) have gained entrance, andbegins by causing necrosis of a small po
Size: 1583px × 1579px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectpatholo, bookyear1895
