INDURATION

n. I2n-du2-ra's hu3n. Gr., <ricAyjp(o<ns. Lat., induratio. Fr., i. Ger., Verhcirtung, Erhiirtung, Hcirten. It., ind uri men to. Sp., induration. 1. The state of being, or the proce of becoming, hardened. 2. An old term for a form of atrophy; also for a number of morbid proce es consisting in hypertrophies or new formations, especially of connective ti ue. [D, 3, 20.] Atrophic pigmentary i. (of the stomach). A pigmentary change in the mucous membrane of the stomach a ociated with glandular atrophy and fibrous hyperplasia. The pigmentation is usually gray, being due to the presence of small, black granules, consisting of extravasated blood. The thinned condition of the mucous membrane indicates the atrophic proce , and the fibrous hyperplasia, if slight, is confined to the inter glandular connective ti ue. [D, 48.] IJrowii i. of the lungs. Fr., induration brune des poumons. Ger., braune I. der Lungen. See Pigment i. of the iMHgr. Cyaiiotic i. Fr.. f. (ou endurci ement) cyanotique. Ger., cyanotische I. (oder Verhartung). An i. resulting from long-continued venous hyper semi a, the pre ure on the ve els causing transudation of blood and serum and the formation of a dark, hard ma . In the liver, spleen, etc., it leads to the absorption of more or le of the parenchyma and to the formation of new connective ti ue. [D, 3, 4.] Fibrous i. of the lung. See Interstitial PNEUMONIA. Hunter's che I. (Ger.). See Hunter i an CHANCRE. I's de voisinage [Fournier] (Fr.). Syn.i: chancre succe if. Isolated i's that sometimes occur at a short distance from a syphilitic chancre. It is uncertain whether they are due to metastasis from the primary chancre or correspond to separate points of inoculation. [G.] I. foliacee [Fournier] (Fr.). The leaf-like or paper-like i. of a syphilitic chancre when it is of the lightest grade perceptible to the touch. [G.] See also Lamellar i. of the syphilitic chancre. I. lamelleuse (Fr.). See Lamellar i. of the syphilitic chancre. I. of chancre. See Hunter i an CHANCRE. I. of the lung. Fr., i. pulmonaire. See Interstitial PNEUMONIA. I. papyracee (Fr.). See /. foliacee. I. parcheminee [Ricord] (Fr.). See Parchment i.I's plastiques des ti us erectiles du pnis [Demarquay] (Fr.). See SCLLROSIS of the corpora cavernosa. I. primitive (Fr.). See Syphilitic CHANCRE. I. pulmonaire (Fr.). See Interstitial PNEUMONIA. I. tegu me i it a ire (Fr.). See SCLEREMA cutis. Lamellar i. of the syphilitic chancre. Fr., i. lamelleuse. I. of the syphilitic chancre occurring as a superficial thickening in the form of a thin plate or disc. [G.] Mitral i. Hardening of the mitral valve (e. g.. in sclerotic endocarditis). It causes mitral murmurs, usually heard at the apex of the heart and exceptionally in the second intercostal space. [D, 45.] Parchment i. Fr., i. parcheminee. The i. of a syphilitic chancre when it is of slight degree and feeling, when held between the fingers, like a piece of parchment. [G.] Pigment i. of the lung [Virchow]. A form of interstitial pneumonia in which, after long-continued pa ive congestion, a ociated with obstruction at the mitral orifice, pigment from the blood is lodged in the lung-ti ue, forming red points that can be seen on section of the lung. [D, 5.] Plastic i's of the penis. See SCLEROSIS of U", blue; U3, lull; U, full; U5, urn; U, like ii (German). [s. 451]