Objective To approach the efficiency and feasibility of preserving the fertility for patients with placental site trophoblastic tumor ( PSTT ).Methods Totally 2 086 cases of gestational trophoblastic neoplasm ( GTN) patients registered in Peking Union Medical College Hospital between 1998 and 2013.Fifty-seven of them were PSTT patients , 40 cases of which suffered hysterectomy , the rest 17 PSTT patients who preserved their fertility were analyzed retrospectively.The computerized database of clinical and pathological reports was reviewed in this cohort.Results The clinical manifestation of PSTT was not specific compared to other types of GTN.The average age of the 17 patients was 29.5 years old (range 22-39 years).The most common antecedent pregnancy was term birth (8 cases), the others were spontaneous abortion in 4 case, artificial abortion in 3 cases and molar pregnancy in 2 cases.The baseline serum β-hCG was slightly elevated and 12 patients (12/15) were less than 1 000 U/L.In this cohort, nine of the patients were in stage Ⅰ, while the other eight cases were in stage Ⅲ .The patients suffered conservative surgery, including dilation and curettage of uterus in 7 cases, open abdomen uterine lesion excision in 4 cases, laparoscopic uterine lesion excision in 3 cases, hysteroscopic uterine lesion excision in 1 case, and pulmonary lobectomy in 2 cases.Two of the patients didn′t received chemotherapy , while the other 15 cases suffered combination chemotherapy.Compared with 40 patients who suffered hysterectomy during the same interval , fertility preservation group did not result in poor outcomes or high risk of relapse rate.Six subsequent pregnancies happened after the therapy , two of them were during their second-trimester, while four patients had healthy babies by vaginal delivery in two and cesarean section in two .The scar of the uterus was fairly well during the cesarean sections.Conclusions Reservation of fertility therapy could be considered in highly-selected patients for young women who strongly desired to preserve their fertility and with localized lesion.Exactitude follow-up after therapy should be recommended.Contraception should also be recommended for at least one year after the chemotherapy.Vaginal delivery could be an option for the future pregnancies.%目的探讨胎盘部位滋养细胞肿瘤（ PSTT）患者保留生育功能治疗的可行性及有效性。方法对1998年至2013年在北京协和医院接受保留生育功能治疗的17例PSTT患者的临床病理资料进行回顾性分析。结果17例保留生育功能PSTT患者的平均年龄为29.5岁（22～39岁）。最常见的前次妊娠为足月产（8例），其次为自然流产（4例）、人工流产（3例）、葡萄胎（2例）。治疗前血清β-hCG水平轻度升高，12例（12／15）患者的β-hCG水平低于1000 U／L。Ⅰ期患者9例，Ⅲ期患者8例。保留生育功能手术方式包括：开腹子宫病灶切除术4例、腹腔镜子宫病灶切除术3例、宫腔镜子宫病灶切除术1例、刮宫术7例、肺叶切除术2例。17例患者中有2例未接受化疗，其余15例患者接受了联合化疗。与同期40例切除子宫的PSTT患者相比，17例保留子宫患者的预后及复发情况均无明显差异（ P＞0.05）。6例患者成功再次妊娠，其中2例尚在中孕期，4例已分娩正常新生儿（2例阴道分娩，2例剖宫产）。结论对于年轻、有生育要求且病灶局限的PSTT患者，治疗上可以考虑保留生育功能，治疗结束后应严密随访，并建议停止化疗后1年再妊娠，可以在严密监测下阴道试产。
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