A system of surgery : pathological, diagnostic, therapeutic, and operative . ulo-fibrous,more or less vascular, and pos-sessed of considerable is evidently a kind of ad-ventitious membrane, formedout of plastic matter. Betweenthis cyst and the parasite there is commonly a soft, pulpy, dirty-looking substance, the precise nature and objectof which are not known. In consequence of its endogenous mode of generation,a large hydatid sometimes contains several smaller, one within another, like somany pill-boxes. Although the hydatid itself consists of two distinct layers, it is generally
A system of surgery : pathological, diagnostic, therapeutic, and operative . ulo-fibrous,more or less vascular, and pos-sessed of considerable is evidently a kind of ad-ventitious membrane, formedout of plastic matter. Betweenthis cyst and the parasite there is commonly a soft, pulpy, dirty-looking substance, the precise nature and objectof which are not known. In consequence of its endogenous mode of generation,a large hydatid sometimes contains several smaller, one within another, like somany pill-boxes. Although the hydatid itself consists of two distinct layers, it is generally soweak and delicate as to break under its own weight when removed from itsinclosing cyst, shrinking into a soft, pulpy mass, not unlike the white of a hard-boiled egg, both in appearance and chemical composition. To the inner surfaceof the parasite are attached numerous little bodies, as in fig. 41, hardly as largeas a grain of sand, of a spherical shape, and of a grayish color, each consistingof a delicate cyst, filled with echinococci. These animals, which derive their. Hydatids inclosed ia a commoa cyst. 232 TUMORS, OR MORBID GROWTHS. CHAP. VII. origin and support from the hydatid, soon separate themselves, acquiring thus asort of independent existence, gi-eat numbers being often seen floating about inthe parent liquor when they are yet hardly the two-hundredth part of an inch indiameter. Each echinococcus consists of a body and a head, the latter being encircled bya row of teeth. The body, composed of solid, granular matter, has a curiouslyspeckled appearance, owing to the presence of numerous ovoid bodies immediately Fi?. 41. Fig. 42.
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Keywords: ., bookcentury1800, booksubjectgeneralsurgery, booksubjectsurgery
