File:The American journal of roentgenology, radium therapy and nuclear medicine (1906) (14570559539).jpg

Identifier: americanjournroen09ameruoft (find matches)
Title: The American journal of roentgenology, radium therapy and nuclear medicine
Year: 1906 (1900s)
Authors: American Radium Society American Roentgen Ray Society
Subjects: Radiotherapy X-rays
Publisher: Springfield, Ill. C.C. Thomas
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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ter exposureat the time that the plaster was removed.While taking away the covering a narrowstrip of epithelium was pulled away withthe adhesive portion, but no other varia-tion from the normal was observed. Atthe end of the thirteenth day the entireexposed area showed a light even tanningand a definite contraction of the whole areaparallel to the long axis of the rabbit.After a month had elapsed the appearancewas that shown in Figure 5. The shallowulceration which appeared at the point ofapplication of the adhesive strip in themiddle of the area slowly spread out inboth directions, until it assumed the dimen-sions shown. The process is more extensiveover the area that was covered than overthe unprotected surface. Rabbit R4 was treated in exactly thesame manner except that the coveringwas allowed to remain in place for elevendays. Figure 6 shows the appearance ofthe lesion at tin end of twenty-five days.It is evident that the greater part of theulceration lies in the upper half of the
Text Appearing After Image:
Fig. 9. View of complete apparatus showing thesupply reservoir and the drain bottle below. that the temperature beneath the adhesivestrip was higher than that of the uncoveredskin, but it seems likely that such was thecase. Rabbits do not perspire, so that theinfluence of sweat is ruled out. The me-chanical irritation set up by the removalof the narrow adhesive strip might possiblybe the exciting cause of all of the ulcerationproduced. Perhaps future experimentationwith more ideal types of covering materialswill make the interpretation of these find-ings easier. Attempts to study temperature effects Relation of Temperature Changes to Roentgen-Raj Skin Reactions 157 produced by merely applying a coveringto the skin proved so unsatisfactory thatthe piece of apparatus shown in Figures7, 8 and 9 was set up with the hope thatthe variable factors could be more accu-rately controlled. A rabbit box was soconstructed that an animal placed insidecould sit in a normal comfortable position,but co

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