Otitis

(o-ti'-tis). Inflammation of the ear. O., Catarrhal, catarrhal inflammation of the middle ear. O., Desquamative, a proliferation and thickening of the epidermic layer of the external auditor canal and the tympanic membrane. The epithelium becomes desquamated and lies in the canal. O., Diphtheric, a pseudo-membranous inflammation of the middle ear, sometimes also of the external canal, due to extension of diphtheria from the throat. O. extern a; O. intern a; O, media; inflammation of the external, internal, and middle ear, respectively. O., Furuncular, the formation of small furuncles in the external auditory canal. O. labyrinthic a, inflammation of the labyrinth. Its symptoms resemble those of meningitis; it is not fatal, but leads to permanent deafne . O.mycosa. Synonym of O. parasitic a. O. parasitic a, inflammation of the external or middle ear from the presence of parasites, Myiasis aurium. O. phlegm onos a, acute otitis with suppuration. O. purulent a chronic a, chronic inflammation of the middle ear, with persistent discharge. O., Sclerotic, chronic catarrhal otitis media, with thickening and hardening of the ti ues.