Roentgen diagnosis of diseases of the head . head. There exist, furthermore, very gradual transitions betweenthe typical basilar invagination and the elevation of the skullbase to be observed in the various skeletal diseases, as puer-peral and senile osteomalacia, osteitis deformans Paget . anddysostosis cleidocranialis Avhich bring about a kind of basilarinvagination along with their other changes in shape andstructure. Some cases in the literature considered as tuber-culous caries, or described under other names, are probablyto be classed here also I Honien . The examination of the skull bas
Roentgen diagnosis of diseases of the head . head. There exist, furthermore, very gradual transitions betweenthe typical basilar invagination and the elevation of the skullbase to be observed in the various skeletal diseases, as puer-peral and senile osteomalacia, osteitis deformans Paget . anddysostosis cleidocranialis Avhich bring about a kind of basilarinvagination along with their other changes in shape andstructure. Some cases in the literature considered as tuber-culous caries, or described under other names, are probablyto be classed here also I Honien . The examination of the skull base with the x-ray is indispen-sable for the diagnosis of basilar invagination. The roentgen-ogram permits the determination of the change in the curvatureof the posterior cranial fossa, as well as the rudimentary 122 ROENTGEN DIAGNOSIS OF DISEASES OF THE HEAD formation of the atlas and epistropheus. The roentgenogramwill also permit the discovery of erosions of the inner surfaceof the skull, the origin of which is to he attributed to an in-. 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 position 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 vertebrae. 3 ELL A
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthea, booksubjectskull
