. Cyclopædia of obstetrics and gynecology . Zv. Vascular zone of ovary. K,Foetal cyst resting on posterior wall. Zx\ Remnant of fimbriated extremity of broad ligament. E,Remnant of the parovarium. but adds a sixth variety, which he calls tubo-ovarian, or tubo-abdominal. Depaul, arguing from a practical, rather than from an 352 A TREATISE ON OBSTETRICS. anatomical standpoint, makes only two varieties: tubal and abdominal,each one of these admitting snb-division. Thus tubal pregnancy may,in a measure, be also interstitial, and abdominal may be either primaryor secondary. In the first variety of
. Cyclopædia of obstetrics and gynecology . Zv. Vascular zone of ovary. K,Foetal cyst resting on posterior wall. Zx\ Remnant of fimbriated extremity of broad ligament. E,Remnant of the parovarium. but adds a sixth variety, which he calls tubo-ovarian, or tubo-abdominal. Depaul, arguing from a practical, rather than from an 352 A TREATISE ON OBSTETRICS. anatomical standpoint, makes only two varieties: tubal and abdominal,each one of these admitting snb-division. Thus tubal pregnancy may,in a measure, be also interstitial, and abdominal may be either primaryor secondary. In the first variety of abdominal pregnancy, the fecundated ovum,instead of entering the fallopian tube attaches itself to the peritoneum,and contracts adhesion. In the second, the pregnancy was, at the out-set, tubal, and it becomes peritoneal when the tube ruptures in theearly months, and the ovam lives in its second situation. Depaul thus excludes a variety of gestation which was first describedby Dezeimeris, and where the ovum is found under the Fig. 35.—Fcetal Sac Open.—Pp, Peritoneum. Tt, Tube in the wall of the cyst. Lt, Canal ofthe tube. Ach, Amnion and chorion united. Ck, Cavity of the foetal cyst. PI,Placenta. K, Foetalcyst. Fu, Cord. X, Foetus. The cases cited, however, by him, and by Loschge, H^lie, Baudelocque,Decord and Pelvet, Saviard, Bernard Calvo, Leven, Noel, Von Horn,Lobstein, Gallard, Fleuriot, Nonat, Hecker, and others, prove its possi-bility. In ifehese instances the ovum develops between the layers of thebroad ligament independently of the ovum and tube. According toCauwenberge, the ovum can only find its way here under two conditions:either a Graafian follicle ruptures at the lower border of the ovary,which is not covered by peritoneum, and, since this does not tear, thevery situation of the ovum renders impregnation impossible; or else,it engages between the proper covering of the ovary and its peritonealenvelope, on the thin and irregular border of a torn f
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