A Text-book of the Diseases of the Ear and Adjacent Organs

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Henry C. Lea's Son, 1883 - Ear - 800 pages
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Page 530 - By purulent meningitis, or by the formation of cerebral abscesses, the surface of the petrous bone, which is directed towards the cranial cavity, being fenestrated in one or more places, and the suppuration spreading to the meninges and the brain. 2. By septic phlebitis, thrombosis, embolism, and septicaemia, consequent upon the extension of the purulent process to the venous sinuses on the petrous bone, or the sinus of the jugular vein.
Page 283 - In the present state of our knowledge we are not in a position to classify individuals into those who will make good analysts and those who will not.
Page 568 - Obstinate pain in the mastoid continuing for days or weeks without appreciable stagnation of the pus and external swelling, especially if the bone is very sensitive to pressure, as then there is probably a deep-seated abscess within the mastoid which does not communicate with the tympanum. " 5. As a vital indication in every suppuration of the middle ear combined with inflammation of the mastoid, in which fever, vertigo and headache are developed during the course of the affection, symptoms which...
Page 152 - Fig. 139) 1 em. into the corresponding orifice, and then compresses with the left thumb and fore finger the alae of the nose closely around the instrument. The patient is next told to perform an act of swallowing, and at the same moment the surgeon expels the air from the inflating bag with his right hand. By the condensation of air produced in the nasopharynx in this manner the closure effected by the soft palate is forced open, and its vibrations give rise to a dull, gurgling sound, which frequently,...
Page 530 - Politzer's tabulation of these methods, and then endeavor to illustrate each by clinical cases. He says: A fatal issue occurs in suppuration of the middle ear: A. When caries of the temporal bone extends to adjacent vital organs, thus : (1.) By purulent meningitis, or by the formation of cerebral abscesses, the surface of the petrous bone, which is directed towards the cranial cavity, being penetrated in one or more places, and the suppuration spreading to the meninges and ,the brain. (2.) By septic...
Page 168 - ... Lungs,' to all the respirators for which he holds himself responsible. The use of these instruments in allowing persons with delicate lungs to take out-of-door exercise with safety and advantage in comparatively severe weather, is now universally recognised by the medical profession. RESPI'RATORY SOUNDS, are of the greatest importance in the diagnosis of the diseases of the lungs. They may be divided into (1) those directly resulting from inspiration and expiration, and (2) those of the voice,...
Page 446 - In some instances they connect the inner surface of the membrana tympani to the inner wall of the tympanic cavity...
Page 387 - ... neural crest ectoderm embedded within the mesenchyme begins to form the ossicles. During the early stages of development, this mesenchyme spans the gap between the primordial tympanic membrane and oval window. Meckel cartilage, which is derived from the first pharyngeal (branchial) arch, gives rise to the head of the malleus and the body of the incus. The remainder of Meckel cartilage develops into the mandible and sphenomandibular ligament (Meckel ligament). The first pharyngeal arch is also...
Page 389 - The chorda tympani (/, /), arises from the facial before it emerges at the stylo-mastoid foramen (s), runs through the tympanic cavity (above the tendon of the tensor tympani, between the handle of the malleus and the long process of the incus), passes out of the skull through the petro-tympanic fissure, and then joins the lingual nerve at an acute angle (p.
Page 197 - ... beyond doubt. Politzer found that next to locksmiths, coppersmiths and coopers were most afflicted by disturbance of the hearing. Upon the coopers especially, according to their own statement, the so-called hollow stroke, when hooping the casks, is said to have such a deafening effect that almost all of them, if they remain at their trade, become hard of hearing after a time. Pathology: Haberman examined thirty-one boilermakers, in whom there were no pathological changes in the middle ear. In...

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