Roentgen diagnosis of diseases of the head . ymptom of local tenderness, and makes possiblethe determination of only plain bulging or perforation of thebone, the roentgenogram permits us to recognize the characterof all the skull changes mentioned. From the position, thecontour, and the limitation of the changed portion of the skull,one may draw conclusions as to the site, the size, and the na-ture of the tumor. If, in addition to the circumscribed changein the skull, there are recognizable signs of general erosion, itis probable that the tumor is of considerable size. Uniformthinning or bulgi
Roentgen diagnosis of diseases of the head . ymptom of local tenderness, and makes possiblethe determination of only plain bulging or perforation of thebone, the roentgenogram permits us to recognize the characterof all the skull changes mentioned. From the position, thecontour, and the limitation of the changed portion of the skull,one may draw conclusions as to the site, the size, and the na-ture of the tumor. If, in addition to the circumscribed changein the skull, there are recognizable signs of general erosion, itis probable that the tumor is of considerable size. Uniformthinning or bulging of the skull wall speaks for the presenceof a benign tumor (cyst, endothelioma, fibroma) while osteoporo-sis of the bone speaks for infiltration through a malignantprocess, (sarcoma, tubercle, etc.). Of especial diagnostic significance is, finally, the roentgeno-logic proof of an intracranial area of calcification in the neigh-borhood of changed areas in the skull wall (as signs of a cal- 214 ROENTGEN Dl AOXOSIS OF DISEASES OF THE 1IKAI). Fig. 84.—An anteroposterior x-ray picture of the temporal region in a man whohad a tumor in that region. The temporal bone has been forced out and thinned inthat region by the local pressure of the tumor. ST
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthea, booksubjectskull
