A treatise on the diseases of the ear including the anatomy and physiology of the organ together with the treatment of the affections of the nose and pharynx which conduce to aural disease . orated or the partslaid bare by an incision. * See a report, by Dr. H. Ferrer, of a case in which external symptoms wereabsent, Archives of Otology, vol. xvii. p. 314. AFFEUTIUXS OF TlIK MASTOID PROCESS. 485 It sometimes happens that the pus of an abscess in themastoid process finds its way to the surface through the posteriorwall of the external meatus. In such a case the discharge ispreceded by inflammat
A treatise on the diseases of the ear including the anatomy and physiology of the organ together with the treatment of the affections of the nose and pharynx which conduce to aural disease . orated or the partslaid bare by an incision. * See a report, by Dr. H. Ferrer, of a case in which external symptoms wereabsent, Archives of Otology, vol. xvii. p. 314. AFFEUTIUXS OF TlIK MASTOID PROCESS. 485 It sometimes happens that the pus of an abscess in themastoid process finds its way to the surface through the posteriorwall of the external meatus. In such a case the discharge ispreceded by inflammation of the periosteum and bulging of thewall of the meatus, perhaps to such an extent as completelyto occlude the passage. After discharge of the pus, a fistulousopening remains, more or less covered up by sprouting granula-tion tissue. In those cases in which the disease of the bones is due toextension of suppurative inflammation from the tympanum, per-foration of the membrane is almost invariably present. Themembrane has, however, been found normal in such cases. The Course of the morbid process when the bone is affectedvaries in different cases. Extension of the inflammation in an. A Sequkstrum from the Mastoid Process, with a portion of the groove (a) for the lateralsinus. It was removed by the author from a child, aged live years, who was brought to theLondon Hospital on account of a purulent discharge from the right ear following scarletfever. outward direction, with periostitis and abscess as results, is themost common course. Several such abscesses, in more or lessrapid succession, over the mastoid process are indicative of diseaseof the bone. Sometimes the pus finds its way down the side ofthe neck and forms a swelling of considerable size ; it may passforwards to the side of the pharynx and downwards even as faras the pleura. The inflammation may likewise extend towardsthe cranial cavity, and set up phlebitis of the lateral sinus, orinvolve the Fallopian aqueduct and
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Keywords: ., boo, bookcentury1800, bookdecade1890, booksubjectear, bookyear1894
