慢性中耳炎の側頭蜂窠

　衆知の如く，最近では慢性中耳炎（以後慢中と略す）のレントゲン寫真を撮ることが多く，先覺の人はゾンネンカルプ氏の他にシュテンヴァース氏による撮影で，外部蜂窠は勿論のこと錐體蜂窠の病態を知ろうとしている。

　吾々2人は淺學にして慢中の骨部病變の讀影に就ては，術前の豫想と術後の實相との間に大きな喰違いのあることに驚くことが少なくない。多くの場合，慢中のある耳に於て側頭蜂窠の發育が強く抑制されていることはレントゲン寫真のみならず手術の所見に照しても明らかである。それ丈に一側のみ罹患の際，健側蜂窠の發育が極めて良好であれば，左右像の相違が強く關心を呼ぶものである。（第1,2圖）

KAWASAKI AND NAGATA made X-ray studies of 44 cases of unilateral chronic otitis media by method of exposure described by Sonnenkalb. It was found that the develop-ment of air cells in the temporal bone on the diseased side was exceedingly poor which was strongly contrasted against the normal side which was well developed. Dividing cell deve-lopments in to that of large and small, the proportion which, hereto, have been known has been a slight predominence of the latter types. Present study, however, showed that proportion to be in a reversed oder, 26:18. Basing their opi-nion on such facts the authors feel justified in assuming that the factors which influence poor cell development are not only those that are inherent but also acquired ones that will hinder or stay the normal process of develop-ment. It is also believed that the probabilities are that the air cells may make normal pro-gress of development if the suppressive cause, the inflammatory process which is the ques-tion in point, be removed in time. With these facts in view, in coping with problems of chronic otitis media the authors stress the necessity of operative treatment to be instituted in in-fancy or early childhood.