Northrup Benjamin E, Harris Robert D
Dartmouth Medical School, Hanover, NH 03755, USA.
J Clin Ultrasound. 2009 Jun;37(5):292-4. doi: 10.1002/jcu.20544.
The chorionic bump, an irregular, convex bulge of the choriodecidual surface into the gestational sac (GS), is a recently described, uncommon abnormality of the 1st-trimester GS and is associated with a guarded prognosis for early pregnancy. The case of this 42-year-old female demonstrates a previously unreported relationship: a transvaginal sonographic finding of a chorionic bump associated with a spontaneous tubal ectopic pregnancy. This might support the hypothesis that the chorionic bump represents a small hematoma that bulges into the GS.
绒毛膜隆起是指绒毛蜕膜表面向妊娠囊（GS）内突出的不规则、凸起的肿块，是最近描述的一种少见的孕早期妊娠囊异常，与早期妊娠预后不良相关。这位42岁女性的病例显示了一种此前未报道过的关系：经阴道超声检查发现绒毛膜隆起与自发性输卵管异位妊娠有关。这可能支持了绒毛膜隆起代表突入妊娠囊的小血肿这一假说。
