. Roentgen diagnosis of diseases of the head . Fig. 21.—A print from an x-ray plate of Case 1, a woman, forty-one years old,with basilar invagination. The pictuie brings out quite clearly the almost pathog-nomonic iiosition of the head. One gets also a very clear picture of the nearly flatskull base due to a shoving up of the posterior cranial fossa by the cervical vertebr:c. 3^LLA. Fig. 22.—A drawing of Fig. 21. C is clivus, PR is the pyramid on ihe right side,since it is a sinistrodcxtral [licturc. Only a rudiment of the first vertebra is to beseen in the picture. crease in intracranial pres
. Roentgen diagnosis of diseases of the head . Fig. 21.—A print from an x-ray plate of Case 1, a woman, forty-one years old,with basilar invagination. The pictuie brings out quite clearly the almost pathog-nomonic iiosition of the head. One gets also a very clear picture of the nearly flatskull base due to a shoving up of the posterior cranial fossa by the cervical vertebr:c. 3^LLA. Fig. 22.—A drawing of Fig. 21. C is clivus, PR is the pyramid on ihe right side,since it is a sinistrodcxtral [licturc. Only a rudiment of the first vertebra is to beseen in the picture. crease in intracranial pressure caused hy pronounced diminu-tion in the size of the posterior cranial fossa. Wo liad occasion to oxamino two cases of invagination ofthe skull base. DISEASES OF THE SKULL 123 Case 1.—Female, forty-one years old. Several weeks previously Ihcicliad appeared immobility of tlie head with severe pain in the occi]iiil. Tlic])aiii soon al)ated and in its stead tliere iippcaiiMl difficulty in speakinf; andswallowing-. The examination revealed a characteristic position of the headsaid to have been observed for several years by the patient and her rela-tives. The head was inclined backward so that the occiput Iny ;iliiiost onlli(> l)ack of the neck. Tlie active and passive movement of tlir licMd waslimited but not painful. There existed right-sided paralysis of the tonguew
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