. Diseases of metabolism and of the blood, animal parasites, toxicology. Constitutional diseases; Metabolism; Blood; Medical parasitology; Poisons. PATHOLOGY 249 In some forms the amount of synovial fluid is increased, occasionally turbid but—and this is characteristic of chronic arthritis—nciie;- purulent. The villi of the synovial membrane are hyperemic (violet red), showing. Fig. 5.—Metatabso-Phalangeal Articulation of a Chorus Girl, Aged Forty-Five, with Beginning Chronic Arthritis "without Symptoms; Death from Contracted Kidney. Fibrillation of the cartilaginous basic substance, prol
. Diseases of metabolism and of the blood, animal parasites, toxicology. Constitutional diseases; Metabolism; Blood; Medical parasitology; Poisons. PATHOLOGY 249 In some forms the amount of synovial fluid is increased, occasionally turbid but—and this is characteristic of chronic arthritis—nciie;- purulent. The villi of the synovial membrane are hyperemic (violet red), showing. Fig. 5.—Metatabso-Phalangeal Articulation of a Chorus Girl, Aged Forty-Five, with Beginning Chronic Arthritis "without Symptoms; Death from Contracted Kidney. Fibrillation of the cartilaginous basic substance, proliferation of the cartilage ceils, the capsules of which partially open into the joint cavity. Tlie capsule of the joint is intact. marked proliferation; occasionally fatty degeneration is noted (lipoma arl)o- rescens), and in well developed cases present the appearance of sheep's wool; the capsule and its surroundings show edematous infiltration. The bone appears unchanged in the early stages of the disease. In later stages the smooth surfaces are denuded of cartilage, the bone is bare, and, if joint movements have still been performed, shows grooves, re- scmliling the crevasses of a glacier. Often the bared surface is dense and ivory-like, or it is covered by connective tissue which extends from the borders of the synovial membrane, from transformed cartilage cells, or even from the surfaces bare of cartilage. This connective tissue covers the joint surface (Kachel), and frequently adheres to the opposing joint ends (fibrous anky- losis). These connective tissue striae may calcify and finally ossify (bony ankylosis). Upon the border of the cartilage, wherever it is covered by synovial moml}rane, ecchondroses develop which are transformed into osteoids and finally into bony tissue. By these exostotic marginal proliferations, the joint end attains a mushroom form and resembles the crown of the antler of a Please note that these images are extracted from scanned page
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