Abscess

{abr-ses\ \_absce us, a departure or separation]. A localized collection of pus surrounded by a wall of lymph. According to location, absce es are named Dorsal, Iliac, Mammary, Tschio-rectal, Per i typhlitic, Retro pharyngeal, Urethral, etc. A., Alveolar, absce in the gum or alveolus. A., Atheromatous, an area of softening in the wall of a ve el the result of sclerotic end arteritis. A., Bursal, absce in the bursae. A., Canalicular, mammary absce that communicates with a milk duct. A., Chronic, or Cold Absce , one of slow and apparently non-inflammatory development, generally about a bone, joint, or gland. It is usually tuberculous and contains cheesy material. A., Cold. See A. Chronic. A., Congestive, the pus appears at a point distant from where it is formed. A., Embolic, formed at the seat of a septic embolus. A., Metastatic. See A. Embolic. A., Miliary, a small embolic absce . A., Primary, one formed at the seat of pyogenic infection. A., Psoas, one arising from disease of the lumbar or lower dorsal vertebrae, the pus descending in the sheath of the psoas muscle, and usually pointing beneath Poupart’s ligament. A., Pyemic. See Pyemia. A., Residual, one formed in or about the residues of former inflammation. A., Tuberculous. Same as A., Chronic. 22