File:Radiography, x-ray therapeutics and radium therapy (1915) (14755285184).jpg

Identifier: radiographyxrayt00knoxuoft (find matches)
Title: Radiography, x-ray therapeutics and radium therapy
Year: 1915 (1910s)
Authors: Knox, Robert, 1868-1928
Subjects: Radiography Radiotherapy X-rays
Publisher: London : A. & C. Black
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: MSN

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ded with fluid.Dr. Emery, of Kings College Hospital, has been good enough to report on thetumour shown m Fig. 148. It consists of a cellular matrix, composed for 184 RADIOGRAPHY the most part of large, round, or oval cells, having large nuclei, sometimesmultiple. There are also a few myeloplaxes. This part of the tumour issarcomatous in type. Set in this tissue are numerous masses of cartilage,fairly well formed, but with, tumour cells (like those of the matrix) insteadof ordinary cartilage cells. The tumour is a chondro-sarcoma. Spontaneous fracture is a not uncommon complication, and owing to theexpansion of the bony framework, egg-shell crackling may be met with.Later, the growth may expand beyond the bony limits of the growth, andsecondary deposits occur, the substances in which these are found dependingupon the type of the primary tumour. The lungs and mediastinum arefrequently the seat of secondary growths. The periosteal type of sarcoma is not at all easy to distinguish. It may
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Fig. 150.—Tuiuour of clavicle (Kadiograpli by Dr. li. N\. A. Salruoud). Sarcoma of acromial end of clavicle. This has the appearance of a cystic conditionof the bone. It developed rapidly. appear as a decided shadow of about the density of the soft parts, arisingfrom the surface of the bone. It involves the soft structures, extending intothem in some instances. The periosteum may show thickening, which willbe revealed radiographically. Myeloid sarcoma in its least malignant form may simulate a cyst of thebone. It is of slow growth, and occurs at the ends of long bones. Spon-taneous fracture may occur in this as in cystic disease. Hydatid cyst may also be met with. It is more chronic in its progress,and shows a well-defined, fairly regular outline. Carcinoma of Bone.—This is usually secondary to a primary focuselsewhere—in the breast, genito-urinary tract, etc. It is generally a latesecondary manifestation, the bones most frequently affected being the ster-num, ribs, and spine. T

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