Fig. 2

Images and findings of a reported case of caesarean scar pregnancy. a Endogenic growth of the GS (measuring 27 × 15 mm) and marked thinning of the uterine cervix wall (measuring 1.9 mm, arrow) were detected by T2-weighted magnetic resonance imaging (MRI) 6 days before surgery (e). b–d The uterus was 85 × 56 mm (c), the GS was 20.6 mm with a clear FHB and the CRL was 10.2 mm (d) according to TVUS 3 days before surgery. Rich blood flow was detected in the thinned myometrium by colour Doppler sonography 8 days before surgery (b). f Gross appearance of the uterus at the start of TLH. A clearly thinned blood-vessel rich myometrium was detected in the lower uterine segment (arrow). g Gross appearance of the uterus and tubes removed during surgery. Gestational products were detected in the uterine cavity, and their locations were coincident with caesarean scar pregnancy. h Pathological findings of caesarean scar pregnancy are indicated by yellow arrows Hematoxylin Eosin (H-E) stain. A normal myometrium was indicated by blue arrows. A clearly thinned blood-vessel rich myometrium was detected. Formation of the decidua and placental villi development was detected near the uterine isthmus (white arrows). Scale bars denote 500 μm