. Journal of radiology . Fig. VII.—Case No. 19388—Left Fig. VIII.—Left oblique position oblique position before injection. after injection. superior portion of the nasal cavi- sinuses, may be considered as aties. In the fully developed stage continuation of the nasal septum,the sphenoid sinus represents a Along the anterior attachment Watch The Journal—It Leads! SPHENOID SINUSES—HUBENY 29 this septum is usually in the me-dian line, but as it extends back-ward, it frequently deviates to oneside, thus making one side largerthan its fellow. Complete absenceof this partition, throwing bothsinuses
. Journal of radiology . Fig. VII.—Case No. 19388—Left Fig. VIII.—Left oblique position oblique position before injection. after injection. superior portion of the nasal cavi- sinuses, may be considered as aties. In the fully developed stage continuation of the nasal septum,the sphenoid sinus represents a Along the anterior attachment Watch The Journal—It Leads! SPHENOID SINUSES—HUBENY 29 this septum is usually in the me-dian line, but as it extends back-ward, it frequently deviates to oneside, thus making one side largerthan its fellow. Complete absenceof this partition, throwing bothsinuses into one large cavity witha single ostium, has also been ob-served. (i) deviations of an inter-sinusseptum, (2) over-reabsorption,causing unnatural enlargement ofthe cavity and prolongations, (3)over-extension of the posteriorethmoidal cells. Under deviations of the septumwe have inequalities in the sizeand shape of the two sinuses. This. Fig. IX.—Case No. 19388—Water sposition before injection. The ostium of the sinus is sit-uated in the nasal portion of thewall, usually in the upper thirdand seldom below the median it lies close to the nasalseptum appears to depend Iargelyupon the depth of the sphenoeth-moidal recess, as the deeper therecess the further away from themedian line it seems to find itslocation. The position of the os-tium in relation to the sinus flooris similar to that found with themaxillary, namely, in a very un-favorable position for drainage. There are many peculiar cellformations and anomalies exhib-ited by the development of thesphenoid. These may be due to Fig. •Waters position after in- may be slight and confined to theposterior portion or be so greatas to practically throw both sin-uses into one large cavity, with asmall cell representing the othersinus, in the anterior portion. Or-dinarily the curvature is in the an-teroposterior direction, but itsometimes also ta
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