興味ある經過を辿つたムコーズス菌側頭骨炎の1例

　緒言

　立木教授の宿題報告に依ればムコース菌は骨小管の血管周囲の淋巴間隙を深部え，深部えと侵入し，潜在性に骨を侵し，突然重篤なる合併症を惹起すると云われる．

　最近我々の経驗した1例は約5ケ月前に右耳鳴，耳痛，頭重，難聽を覚えて某耳科医の診を受けて，右側急性中耳炎の診断の下に治療を受け，其後は約40日間耳管通氣療法を受けていたが諦めて放置してしまつた．我々の診察した時も通氣療法を行うような鼓膜所見をしていた．

Izawa and his associates report on a case of "mucosus" infection of the temporal bone. History reveals the patient had an attack of acute otitis media about 5 months previously to the time of present examination but the aural discharge, though largely diminished in amount in the meantime, has not completely ceased. Insufflation of Eustachian tube was ineffectual towards relief in symptoms of impaired hearing and persistent tinnitus. Examination of the patient showed only a slight degree of inflam-matory infiltration of tympanic membrane but, the offending agent was proven to be "mucosus" bacteriologically. Roentgen ray examination re-vealed involvement of petrous pyramid and mastoid bones in the subacute inflammatory process. Biopsy specimens obtained from 6 dif-ferent areas of the temporal bone showed hyperplastic osteitis in greater number of them but those from deeper parts showed areas of necrosis. Authors conclude that unabating symp-toms of chronic otitis media in this patient seems to be pertinent to presence of chronic otitis media in this patient seems to be pertin-ent to presence of chronic oseteitis in the tem-poral bone.