. The Röntgen rays in medical work . ir outline issharper and darker than normal, and their substance relatively small size—that is, for a person of that age—isdoubtless due to the arrest of development from early disturbednutrition. Their greater transparency can be best seen in thefifth metacarpal, whereas the darker look of other bones is mostlikely owing to the greater amount of tissue to be penetrated onaccount of the clawed-up hand. It will also be noticed that thebosses of ossified peri-articular cartilage on the phalanges are muchof the same shade as the body of the bone.
. The Röntgen rays in medical work . ir outline issharper and darker than normal, and their substance relatively small size—that is, for a person of that age—isdoubtless due to the arrest of development from early disturbednutrition. Their greater transparency can be best seen in thefifth metacarpal, whereas the darker look of other bones is mostlikely owing to the greater amount of tissue to be penetrated onaccount of the clawed-up hand. It will also be noticed that thebosses of ossified peri-articular cartilage on the phalanges are muchof the same shade as the body of the bone. All the fingers are dis-located from the metacarpals. The base of the first phalanx of thefore-finger is apparently fixed against the distal ends of the secondand third metacarpals, but the bases of the middle and thirdfingers appear to be partly wedged between the third and fourthand the fourth and fifth metacarpal heads respectively. Theplate shows how a radiograph will afford anatomical data for the * Lancet, April 15, Fig. 86.—Hand deformed by Chronic Rheumatoid or reduced. Dr. J. R. Philpots case. MEDICAL AND SURGICAL APPLICATIONS 167 explanation of such deformities. At the same time, however, itshould be borne in mind that the proper reading of the facts ofthe radiogram is by no means always an easy matter. Lastly, itmay be pointed out that the shadow of the thumb confuses theradial half of the figure. Mr. Espin, of Newcastle, has noted asimilar transparency in the bones of tuber-culous subjects. In one case—that of ayouth of sixteen, with a locked wrist follow-ing injury—he found the bones of thecarpus ill-defined, and the ulna and radius,metacarpal bones and phalanges, abnor-mally transparent. The transparency wasin marked contrast with the appearance ofthe bones of the other wrist. His secondcase was that of a young man whoseradius had been previously removed fortubercular disease, and who had alsosuffered from a tubercular a
Size: 1347px × 1856px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrad, booksubjectxrays
