EMPYEMA

(Lat.), n. n. E2m-pi2(pu6)-em(am)'a3. Gen., empyem'atos (-is). Gr., JftwAtfui (from ejuryetv, to suppurate). Fr., empyeme. Ger., Empyem, Eitergeschwiir, Eiterbrust. It., Sp., empiema. 1. A collection of pus in a natural closed cavity, especially in that of the pleura. 2. Of Hippo crates, suppuration; of Galen, an internal absce . [D, 1.] Diaphragmatic e. A circumscribed collection of pus between the lower surface of the lung and the diaphragm. [V. D. Harris, " Brit. Med. Jour.," May 22, 1886, p. 972.] E. articuli. A collection of pus in a joint. [A, 326 (a, 21).] E. nec e it at is. Fr., empyeme de nece ite. An e. in which the pus makes its way through the intercostal spaces, and appears gradually as a subcutaneous swelling. [L, 20 (a, 14).] E. pulsans. See Pulsating e.E. vesicse felleae. A collection of pus in the gall-bladder. [C. A. Ewald (A, 319).] Encysted e. E. in which the whole or a portion of the purulent exudation is separated from the rest of the pleural cavity by means of the adhesions which are developed in the course of the inflammatory proce . [D.] False e. E. in which an absce of the lung bursts into the pleural cavity. [D, 1.] Pulsating e. Lat., e. pulsans. Fr.. empyeme pulsatile. Ger., puMrendes Empyem. A form of thoracic e. in which the collection of pus forms a projection between the ribs that pulsates, either with the respiratory movements (generally indicating gangrene of the costal pleura) or with the cardiac pulsations. [Rosenbach (A. 319); B. F. West brook. "N. Y. Med. Jour.," Sept. 11, 1886, p. 281.] True e. A pleural e. in which the exudation is from the pleura itself. [D, 1.] [s. 695]