The origin of disease : especially of disease resulting from intrinsic as opposed to extrinsic causes : with chapters on diagnosis, prognosis, and treatment . ge involving at thesame time the pericardium and the capillaries, f, condensed fat; the rings are formed bythe capsules of the oil-cells, which are less discrete and not so nearly circular as normal. Fig. 45.—Inflammation causing Condensation of the Fat Layer of the Heart, (x 60.) From the same section as Fig. 43. p, thickened and infiltrated pericardium ; c, acapillary, and v, a larger-sized vessel which was curved so that it has been c
The origin of disease : especially of disease resulting from intrinsic as opposed to extrinsic causes : with chapters on diagnosis, prognosis, and treatment . ge involving at thesame time the pericardium and the capillaries, f, condensed fat; the rings are formed bythe capsules of the oil-cells, which are less discrete and not so nearly circular as normal. Fig. 45.—Inflammation causing Condensation of the Fat Layer of the Heart, (x 60.) From the same section as Fig. 43. p, thickened and infiltrated pericardium ; c, acapillary, and v, a larger-sized vessel which was curved so that it has been cut bothlongitudinally and across its calibre ; both vessels are thickened. /, fat, which is con-densed and changed by inflammation so that the rings are all small, ill defined, andcrowded together, presenting a marked contrast in appearance to the fat in Figs. 44 and , an area of round-cell infiltration beneath the pericardium,—one stage of the formationof morbid fibrous tissue. Figs. I, 44, 45 present three different conditions of heart-fat. The first is healthy, the second diseased, and the third very greatly diseased. W ?;? e - H o J. nornm. THE HEART. 69 should be examined, as it shows healthy heart-fat. It and Fig. 44 arefrom the same heart. Disease of the fat layer of the heart is also shown by Figs. 46 and47. The first of these represents a section through the entire thick-ness of the ventricular wall, and shows how the natural relative pro-portion of the various parts is changed. Instead of the fat being athin layer upon the surface, its thickness is as great as and in placeseven greater than that of the muscle. Where they join, fat andmuscle are much commingled, shreds of muscle running out into thefatty substance. Fig. 47, which is an enlarged view of ey Fig. 46,demonstrates that the growth of the fat takes place at the expense ofthe muscle, for the fat can be seen insinuating itself into the mus-cular tissue, rending the fibres and fibrils apart and des
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