On the issue of twin tubal pregnancy (graviditas tubaria bilateralis)

In a very interesting scientific relationship and practically very important chapter of obstetrics about extrauterine pregnancy, the question of twins is not the last place. Several detailed monographs are devoted to him (Schauta Neugebauer, Gmeiner, Pool and Robins, Jayle and Nandrot, etc.) and a lot of casuistic messages, with which obstetric literature continues to be replenished until the very last time. By this I do not mean to say that twins are encountered especially often during ectopic pregnancy; on the contrary, they meet here no more often than with graviditas intrauterina, and one must think that the statistical data (Veit, Guzzoni) derived for twin uterine pregnancy, to a certain extent, can be accepted for ectopic twins. It should only be noted that in this case, we are talking about cases of valid twin extrauterine pregnancy, that is, one in which both fetal eggs were the product of the same, and not different ovulation periods.