American practice of surgery : a complete system of the science and art of surgery . ?:-r:::- ^ ? • ::-::A ?•••v^-:^>-^ -i^i-^^M- ??:Wl- Fig. 50.—Floor of Chronic Ulcer, a, Superficial layer of purulent exudate; 6, zone of chronic granu-lation tissue; c, tissue at base of ulcer. {After Weichselbaum.) gives origin to the form known as callous ulcer. Excessive formation of granu-lation tissue produces an idcus elevatum hypertrophicum. The base of an ulcermay be either lower or higher than the surrounding tissue; it may be edges may be sharply outlined or irregular, thin o
American practice of surgery : a complete system of the science and art of surgery . ?:-r:::- ^ ? • ::-::A ?•••v^-:^>-^ -i^i-^^M- ??:Wl- Fig. 50.—Floor of Chronic Ulcer, a, Superficial layer of purulent exudate; 6, zone of chronic granu-lation tissue; c, tissue at base of ulcer. {After Weichselbaum.) gives origin to the form known as callous ulcer. Excessive formation of granu-lation tissue produces an idcus elevatum hypertrophicum. The base of an ulcermay be either lower or higher than the surrounding tissue; it may be edges may be sharply outlined or irregular, thin or thick, adherent, over-hanging, rounded, elevated, undermined, worm-eaten, etc. They are usually ofa uniform height. The tissue about a chronic ulcer may be red, swollen, oedem-atous, pigmented, eczematous, etc. Smaller ulcers may be grouped about themain one. There is usually only a small amount of discharge from a chroniculcer. The symptoms are much less intense than in the case of an acute ulcera-tion, except when nerves are directlv involved. INFLAMMATION. 143 Among the clinical varieties of chronic ulcer seen in surgical practice ar
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