1. Cervical ectopic pregnancy: hysterectomy specimen examination clarifies the cause of first trimester pregnancy bleeding 
Carla Bartosch, M.D., Otília Brandão, M.D., Nuno Montenegro, M.D., Ph.D. 
Fertility and Sterility 
Volume 95, Issue 3, Pages (March 2011)
DOI: /j.fertnstert
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Ultrasound showing a very thin interface (4 mm) between the placenta and the bladder mucosa. B = bladder; F = fetal head; P = placenta.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

3. Figure 2
Ultrasound showing the relationship between the placenta and the cervix. ECO = external cervical os; F = fetus; P = placenta within cervix.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

4. Figure 3
Hysterectomy specimen. (A) Enlarged cervix containing the fetus; (B) Area of perforation (arrow head) in the anterior cervical wall with exteriorization of placental tissue (arrow); and (C) External cervical os with polyp-like structure corresponding also to placental tissue (arrow).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions

5. Figure 4
Hysterectomy specimen after formaldehyde fixation (anterior and posterior halves). The placenta is implanted below the uterine arteries entrance (arrows) and extensively invades the cervical wall (white line). Orange line = isthmus; yellow line = cervical canal.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2011 American Society for Reproductive Medicine Terms and Conditions