A system of surgery : pathological, diagnostic, therapeutic, and operative . Some of the cells occasionally contain fluidblood, or blood partly fluid and partly clotted ; but this is rare. The outer tableof the bone is expanded, attenuated, and perforated, or so soft, flexible, andelastic that it may be bent like cartilage. In some instances, on the other hand,it is remarkably brittle, and may be crushed like the shell of an egg. The peri-osteum is thickened and indurated ; but the joints in the immediate vicinity ofthe disease are commonly healthy, even when they are separated from it merelyb
A system of surgery : pathological, diagnostic, therapeutic, and operative . Some of the cells occasionally contain fluidblood, or blood partly fluid and partly clotted ; but this is rare. The outer tableof the bone is expanded, attenuated, and perforated, or so soft, flexible, andelastic that it may be bent like cartilage. In some instances, on the other hand,it is remarkably brittle, and may be crushed like the shell of an egg. The peri-osteum is thickened and indurated ; but the joints in the immediate vicinity ofthe disease are commonly healthy, even when they are separated from it merelyby a thin layer of cartilage. The vessels which ramify through the substanceof the bone are tortuous, brittle, increased in size, and oi)en by numerous littleorifices into the aneurismal sac at various points of its extent. There is a form of this affection in which the vessels, as was first clearly shownby Mr. Stanley, consist principally of enlarged capillaries, exhibiting the samegeneral characters as an anastomotic aneurism or an erectile tumor of the soft F]>. Anastomotic aneurism of bone. parts. The disease, represented in fig. 330, has hitherto been chiefly noticedin the broad bones, especially those of the cranium of young children. The causes of this lesion are involved in obscurity. In some instances it hasbeen traced to the effects of a blow; in others to a fall, or jump from a consid-erable height. Either of these occurrences, by disturbing the vascular actionof the bone, might produce the disease. The enlargement, even in its early stage, is tense, painful, and attended withdistension of the superficial veins, swelling of the surrounding structures, andslight, discoloration of the skin. In a short time a deep-seated pulsation, orthrobbing synchronous with that of the left ventricle, and similar to what is wit-nessed in some erectile tumors, may be perceived in the affected part. In theadvanced stage of the malady the beating is accompanied by a sort of undu
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Keywords: ., bookcentury1800, booksubjectgeneralsurgery, booksubjectsurgery
