A textbook of obstetrics . hich they lie. These exostoses may be foundover the sacro-iliac joints, over the crests of the pubis, at theiliopectineal eminences, and over the promontory of the sacrum( Figs. 315,316, 3 17, 3 18). They may attain the size of a pigeonsegg, though they are usually not larger than a pea or nut. Inthe exostoses occupying the seat of the pubo-iliac junctions,directly above the acetabula, the bony growth is apt to assumea sharp, thorny shape, projecting with its point into the pelvicinlet. Kilian was the first to direct attention to this fact ;he called a pelvis thus de
A textbook of obstetrics . hich they lie. These exostoses may be foundover the sacro-iliac joints, over the crests of the pubis, at theiliopectineal eminences, and over the promontory of the sacrum( Figs. 315,316, 3 17, 3 18). They may attain the size of a pigeonsegg, though they are usually not larger than a pea or nut. Inthe exostoses occupying the seat of the pubo-iliac junctions,directly above the acetabula, the bony growth is apt to assumea sharp, thorny shape, projecting with its point into the pelvicinlet. Kilian was the first to direct attention to this fact ;he called a pelvis thus deformed acanthopelys (Fig. 319),or a pelvis spinosa Another possible seat for a bony pro-jection is along the crests of the pubic bones, the exostosis 454 THE PATHOLOGY OE LABOR. taking hero the form of a long, sharp edge, and probably owingits origin to an ossification of the attachment of the iliac fascia,a transformation o( tissue analogous to the ossification some- These bony times seen in Gimbernats ligament outgrowths. Fig. 314.—Cvstic enchondroma(Zweifel). Fig. 315.—Button-like exostosis on thepromontory (Schauta).
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
