间质部妊娠是一种罕见的、极其危险的异位妊娠。在间质部妊娠破裂之前诊断较困难,为避免致命结果,早期诊断是很主要的。在早期妊娠(5～6周),使用超声波摄影,能测定宫腔内妊囊的准确位置。宫底外侧部的妊囊引起的妊娠可向输卵管间质部发展。对于间质部妊娠的早期诊断,超声图象具有 Interstitial pregnancy is a rare and extremely dangerous ectopic pregnancy. Diagnosis in the interstitial pregnancy rupture more difficult, in order to avoid fatal outcomes, early diagnosis is very important. In early pregnancy (5-6 weeks), the use of ultrasound photography, can determine the exact location of intrauterine pregnancy sac. Pregnancy caused by the pregnant sac in the lateral part of the uterus may develop into the interstitial part of the oviduct. For the early diagnosis of interstitial pregnancy, ultrasound images have