Identifier: rntgenraysinmedi1907wals (find matches)
Title: The Röntgen rays in medical work
Year: 1907 (1900s)
Authors: Walsh, David
Subjects: X-rays Radiography X-Rays Radiography
Publisher: New York : William Wood
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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thickenings, as in syphilis,may be readily demonstrated bymeans of the rays, and also thehyperplastic conditions met within ordinary periostitis, in rickets,and in Charcots disease. Exostosis, or OssifyingEnchondroma. A good example of ossifying en-chondroma is shown in Fig. 131.It was taken from a man ofabout fifty who had sustained aninjury to the hand many yearspreviously. In a ray photo-graph the tumour presented theappearance shown in the figure.From its generally light shade,we may assume it to be com-posed either of spongy bone or ofcartilage that has undergonepartial ossification, the areas ofthe latter being shown by darkermottlings. An interesting pointis that the form of the growthis distinctly traceable where itoverlies the darker phalanx. This lighter shade may be due to its replacing the compact tissueof the shaft by new spongy bone. A somewhat similar appearance isto be found in Fig. $8, where absorption of the outer shell of thebone has followed the impact of a bullet.
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Fig. 131.—Ossifying Enchondromaof Finger, of Old Standing:following Injury. Messrs. Allen and Hanbury. 264 TEE RONTGEN RAYS IN MEDICAL WORK A good example of exostosis of the tibia causing pressuredeformity and absorption of the fibula has been kindly contributedby Mr. Eobert Jones, F.R.C.S., of Liverpool (see Fig. 132). Gouty Bones. M. Potain reported to the Paris Academy of Sciences the occur-rence of light spots on the radiograms of gouty bones.* Presum-

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