The diseases of women : a handbook for students and practitioners . tometra.) Single-horned Uterus (litems unicornis).—If one halfonly of the uterus fail to develop, this condition results (). Both ovaries may be well developed, but as a rulethe one associated with the rudimentary cornu retains its in-fantile shape. The vagina is often narrow and the uterinecavity small. Nevertheless, no symptoms may be presentand the woman may menstruate, have sexual intercourse,and become pregnant, just as in the normal condition. Onthe other hand, if pregnancy occur in the rudimentary hornit practical
The diseases of women : a handbook for students and practitioners . tometra.) Single-horned Uterus (litems unicornis).—If one halfonly of the uterus fail to develop, this condition results (). Both ovaries may be well developed, but as a rulethe one associated with the rudimentary cornu retains its in-fantile shape. The vagina is often narrow and the uterinecavity small. Nevertheless, no symptoms may be presentand the woman may menstruate, have sexual intercourse,and become pregnant, just as in the normal condition. Onthe other hand, if pregnancy occur in the rudimentary hornit practically takes the course of a tubal gestation, resultingin rupture. MALFORMATIONS OF REPRODUCTIVE ORGANS. 63 Double Uterus.—There are three types of the con-dition known as double uterus, viz. the uterus septus, theuterus bicornis, and the uterus didelphys. The primaryfeature, embryologically, is incomplete union of Miillersducts. 1. In the Uterus septus the ducts have fused exter-nally, but the septum formed by their approximation per- Tube. Uterine cornua. Vagina Fig. 21.—Uterus unicornis. sists ; consequently the uterus seen from the outside appearsnormal. On section it is found to contain two distinct cavi-ties. The septum may extend to the vulva, producing avagina with the appearance of a double-barrelled gun; orit may involve the uterus alone, the vagina being single; orit may fail to reach the external os, in which case the cer-vix looks normal when seen through a speculum. This isthe uterus subscptus. 2. In the uterus bicornis external union has occurredin the lower part of the uterine body, but is wanting in theupper part; so that when such a case is bimanually ex-amined, the depression between the two halves of thefundus is plainly felt (Fig. 22). Here also the extent ofthe septum varies, reaching to the vulva, to the os exter- 64 DISEASES OF WOMEN. num, or to the os internum only. The last kind gives thevariety known as uterus bicornis unicollis. 3. In Uterus
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