. General surgical pathology and therapeutics, in fifty-one lectures .. . oftissue in the two are just the same. But in practice we distinguishbetween purulent infiltration and abscess. The first expression ex-plains itself: by an abscess we usually understand a circumscribedcollection of pus, excluding further progress of the inflammation;those forming rapidly, from acute inflammation, are called acute orhot abscesses, in contradistinction to cold abscesses, or those due tochronic inflammation. The following figure (Fig. 64) may render theformation of abscess more clear to you. You here see h
. General surgical pathology and therapeutics, in fifty-one lectures .. . oftissue in the two are just the same. But in practice we distinguishbetween purulent infiltration and abscess. The first expression ex-plains itself: by an abscess we usually understand a circumscribedcollection of pus, excluding further progress of the inflammation;those forming rapidly, from acute inflammation, are called acute orhot abscesses, in contradistinction to cold abscesses, or those due tochronic inflammation. The following figure (Fig. 64) may render theformation of abscess more clear to you. You here see how the young cells gradually collect at the pointswhere the connective-tissue corpuscles lay, while intermediate sub-stance constantly decreases, and how in the middle of the drawing, inthe centre of the inflamed spot, the groups of cells unite and form acollection of pus ; every abscess at first consists of such separate col-lections of pus; it grows by peripheral extension of the , it was not doubted that, wherever pus-cells thus appeared Fig. Diagram of purulent infiltration of the cutis connective tissue, forming an abscess in tliemiddle. Magnified 350 diameters. in groups, they were to be regarded as a production of connective-tissue cells; according to our present views, there is no doubt thatthese young cells are escaped white blood-cells, and are simply grouped PHLEGMONOUS INFLAMMATION. 293 together from mechanical causes. The fat, which is usually plentifulin the subcutaneous cellular tissue, is generally destroyed in acute Fig. 65.
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