The science and art of surgery : being a treatise on surgical injuries, diseases, and operations . the most common variety, the osseous tissue is not so completelyinvaded; for, altliongh tlie disease may be situated upon, or be in inti-mate contact witli, the outer la3ers of the bone, which are incorporatedin it, it does not extend into the cancellous tissue or the medullary tumor appears to spring from the periosteum ; and, after removaland maceration, stalactitic projections and radiating fibres may be tracedinto it from the outer layers of the bone. The tendency to the infiltratio
The science and art of surgery : being a treatise on surgical injuries, diseases, and operations . the most common variety, the osseous tissue is not so completelyinvaded; for, altliongh tlie disease may be situated upon, or be in inti-mate contact witli, the outer la3ers of the bone, which are incorporatedin it, it does not extend into the cancellous tissue or the medullary tumor appears to spring from the periosteum ; and, after removaland maceration, stalactitic projections and radiating fibres may be tracedinto it from the outer layers of the bone. The tendency to the infiltration of neighboring soft structures willvary greatly vvith tlie character of the malignant tumor. If a [)eriostealfibroma, it will remain encapsuled, and not implicate tlie structures inits vicinit3\ If a soft sarcoma, it may diffuse itself into areolar spacesand sheaths of muscles. The accompanying cuts (Figs. 429, 430) illustrate the microscopi(!alappearance presented by some forms of malignant tumor of i *>*-: Fig. 429.—Calcified Nodule of Sarcoma ofthe Lung, secondary to a similar growth ina long Bone (188 diam.) A. flat grey Surface represents the Cal-cified Stroma, b. Not decalcified. Showsthe glistening bars of Calcified Stromapassing between the granular cells, whichin some parts also are calcified. Z~~^ ^ ~~^hfy^ ?^J-ST^* y^^ ,11 . ~ ^ Fig. 430. — Myeloid Tumor of Lower Jaw (70diam.), showing the manner in which the bone isinvaded, a. The deep surface of the section. SihioMon.—Malignant tumor of bone most frequently occurs in thehead of the tibia and the lower end of the thigh-bone ; occasionally inthe humerus and in the jaws, more especially about the antrum. It is aremarkable fact, long ago pointed out by Petit, and more recently in-sisted on by Richet, and which I have often had occasion to verify, that,although the epiphysis may have been completely degenerated, the car-tilage of incrustation and the neighboring joint (Fig. 432) nev
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Keywords: ., bookcent, bookdecade1870, booksubjectsurgicalproceduresoperative
