Heterotopic pregnancy (HP) refers to the coexistence of ectopic pregnancy and intrauterine pregnancy. Salpingectomy is proposed as a pretreatment before in vitro fertilization and embryo transfer (IVF-ET) to reduce the risk of HP. HP after IVF-ET occurs in women who had already underwent bilateral salpingectomy, even though it is extremely rare.

中文翻译：

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体外受精和胚胎移植后输卵管切除术后间质异位妊娠：病例报告。

异位妊娠（HP）是指异位妊娠和宫内妊娠并存。建议将输卵管切除术作为体外受精和胚胎移植 (IVF-ET)之前的预处理，以降低 HP 风险。IVF-ET 后 HP 发生在已经接受双侧输卵管切除术的女性中，尽管这种情况极为罕见。