An American text-book of genito-urinary diseases, syphilis and diseases of the skin . mes reddened, thinned, and adherent to the growth, which, break-ing down at the center, leaves a typical syphilitic ulcer with necrosed bone at 654 SYPHILIS OF THE BONES. the base. The diseased bone comes away and an adherent cicatrix is theresult. Rarefying Osteitis.—In this process the inflammation increases in in-tensity, and there is a formation in the subperiosteal tissue, marrow-spaces,and Haversian canals of small round-cells and transuded blood-corpuscles,which resemble granulation or young marrow-tis
An American text-book of genito-urinary diseases, syphilis and diseases of the skin . mes reddened, thinned, and adherent to the growth, which, break-ing down at the center, leaves a typical syphilitic ulcer with necrosed bone at 654 SYPHILIS OF THE BONES. the base. The diseased bone comes away and an adherent cicatrix is theresult. Rarefying Osteitis.—In this process the inflammation increases in in-tensity, and there is a formation in the subperiosteal tissue, marrow-spaces,and Haversian canals of small round-cells and transuded blood-corpuscles,which resemble granulation or young marrow-tissue. With an increase of thiscell-exudation the osseous trabecular become thinned and eventually the absorption of the osseous tissue there is an enlargement of theHaversian canals, and, when marked destruction of the osseous trabecularoccurs, a communication from one Haversian canal to another may be made,inflamed marrow taking the place of the osseous tissue. In response to treat-ment, or in the natural course of the disease, there is a tendency to repair, a. Fig. 211.—Syphilitic thickening, exostoses, and perforation of skull. formative osteitis occurring in which new osseous tissue is developed, resem-bling normal bone-formation. In a more advanced stage the formativeosteitis may involve the bone proper and cause a sclerotic hardening, theinduration being as dense as that of ivory. This process is termed eburna-tion or condensing osteitis. The new bone-formation may take place beneaththe periosteum, between it and the bone, in the bone proper, or within themedullary cavity. Small elevations of the surface without any considerablethickening of the bone are named osteophytes; more defined growths areexostoses; a general enlargement of a whole bone is termed a cases of exostoses and hyperostoses are shown in Figs. 210 and211, which, bv courtesy of Dr. D. L. Huntington, Deputy Surgeon-General GUMMATOUS OSTEO-MYELITIS AND OSTEO-PER
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Keywords: ., bookcentury1800, bookdecade1890, booksubject, booksubjectsyphilis
