EXTRA-UTERINE PREGNANCY.
In this treatise I have, with permission, made use of the preparations that were presented to the Vienna Pathological Museum, up to the year 1879, and which have been much enriched by Professor Heschel, and by making drawings of the preparations I have been able to sketch the early stages of the affection. I extend my thanks to Professors Hofmann and Kundrat, and to prosector Weichselbaum, who left preparations in my charge. The drawings were made by Dr. Heitzmann.
The Formation and Divisions of Extra-uterine Pregnancy.—The ovule can be reached by spermatozoa in any part of the pelvic peritoneal cavity of animals, on its travels from the ovary to its normal developing place, the uterus, for instance, on every part of the way, on the fimbrim, in the tubes, in the interstitial parts of the same and perhaps also in the ovary itself, as well as in the abdominal cavity, and in a rudimentary horn of the uterus. This unfortunate occurrence, for such it must still be called, since we do not possess positive knowledge as to the cause of these conditions, is described as " pregnancy exterior to the uterus, extra uterine pregnancy, graviditas extra-uterina." According to the place on which the ovum remains, and according to that organ with which it is found adherent, or in which it is developed, the different forms of extra-uterine pregnancy are designated.
Only when an extra-uterine deposited ovule is examined early in its development can the exact starting-point be determined, and that is usu ally found to be one or the other tube, interstitial part of the same, or in the rudimentary horn of the uterus.
The museum preparations and our researches only consist of tubal pregnancies, interstitial pregnancy, and pregnancy in the rudimentary • horn of the uterus.
The youngest egg is that of Rogers, the size of an almond (Hennig). According to the site of the ovum in the tube, we may distinguish simple tubal pregnancy , tubo-uterine or interstitial pregnancy, and tubo-ab dominal pregnancy. When the tubes are found to be entirely unaffected by the development of the ovum, the varieties are distinguished accord ing to the starting-point that they are supposed to have in the pelvic cavity, as ovarian or abdominal pregnancies. • Although we can find no preparations of ovarian pregnancy, and on that account are doubtful of its existence, we will still mention what the views are in regard to it.