American practice of surgery : a complete system of the science and art of surgery . AMERICAN PRACTICE OF SURGERY inflammatory exudates, hyaline material appears to be more of a degenerationthan an infiltration. Theoretically, the connective-tissue elements may be trans-formetl into hyaline material containing no nuclei, or the hyalin may be a secre-tion from the connective-tissue cells. In some cases the process appears to beboth a degeneration and a deposit, the interstices of the connective tissue beingfirst filled with a clear, homogeneous material, into which the cells graduallyfuse. Calc
American practice of surgery : a complete system of the science and art of surgery . AMERICAN PRACTICE OF SURGERY inflammatory exudates, hyaline material appears to be more of a degenerationthan an infiltration. Theoretically, the connective-tissue elements may be trans-formetl into hyaline material containing no nuclei, or the hyalin may be a secre-tion from the connective-tissue cells. In some cases the process appears to beboth a degeneration and a deposit, the interstices of the connective tissue beingfirst filled with a clear, homogeneous material, into which the cells graduallyfuse. Calcification and Analogous Conditions.—Under certain conditions there maybe a tleposit in the body of crystalline, amorphous, or granular salts, derivativesof lime or uric acid. This is calletl petrifying infiltration. The deposition of limesalts is usually termed calcareous infiltration or calcification. This is of not in-frequent occurrence. The precipitation of these substances may take place intotissues or structures which are normally i)art of the body, into structures which. Fig. 69.—Corpora Amylacea in tlie Prostate. {Lcitz obj. Xo. 3.) {From the authors privatecollection.) are separated from their normal relationships, or into foreign bodies importedfrom without. In the last two instances we speak of the formation of concre-tions or calculi. Calcification occurs as a normal change in the formation of bone from carti-lage. In advanced life lime salts are deposited with great regularity in the costalcartilages, in the cartilages of the larynx, and in the walls of the arteries. It isgenerally believed that this is due to certain involutionary changes in the bonewhich occur in old age, the lime salts being reabsorbed and deposited elsewherein the body. In some of osteoporosis and osteomalacia the salts are depos- DISTURBANCES OF NUTRITION. 199 ited in apparently normal tissue, as in the lungs, kidneys, and gastric process is sometimes referred to as meta
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