【Chris】評論

In some women, collections of pus may develop in a uterine tube (pyosalpinx) and the tube may be partly occluded by adhesions. In these cases, the morula (early embryo) may not be able to pass along the tube to the uterus, although sperms have obviously done so. When the blastocyst forms, it may implant in the mucosa of the uterine tube, producing an ectopic tubal pregnancy. Although implantation may occur in any part of the tube, the common site is in the ampulla. Tubal pregnancy is the most common type of ectopic gestation; it occurs in approximately 1 of every 250 pregnancies in North Ameri...

【安安】評論

25 下列有關子宮外孕（ectopic pregnancy）的敘述，何者錯誤？ (A)子宮外孕最常見的著床位置是在輸卵管 (B)輸卵管峽部（isthmus）為輸卵管外孕（ectopic tubal pregnancy）最常發生的著床位置 在壺腹部(C)子宮外孕可能著床於卵巢 (D)右側輸卵管外孕，若引起輸卵管破裂時，其臨床表現類似闌尾炎