The following images are present:

Normal

1. Placenta and amniotic cavity, gross
2. Embryo in amnionic cavity, gross
3. Placenta, normal term, fetal surface, gross
4. Placenta, normal term, maternal surface, gross
5. Placenta, normal decidua, medium power microscopic
6. Placenta, normal first trimester chorionic villi, high power microscopic
7. Placenta, normal first trimester chorionic villi with intermediate trophoblast, high power microscopic
8. Placenta, normal second trimester chorionic villi, high power microscopic
9. Placenta, normal third trimester chorionic villi, high power microscopic
10. Placenta, chorionic villi, HCG staining, immunoperoxidase
11. Normal three vessel umbilical cord, microscopic
12. Placenta, yolk sac remnant, gross

Twinning

13. Twinning, diagram
14. Twin embryos in separate amnionic cavities, gross
15. Twin placenta, gross
16. Twin placenta, diamnionic-dichorionic, microscopic
17. Twin placenta, diamnionic-monochorionic, microscopic
18. Twin placenta, monchorionic-monoamnionic, gross
19. Twin placentas, diamnionic-dichorionic (separate discs) with fetal demise of different ages, gross
20. Twin-twin transfusion syndrome, fetal size difference, gross
21. Twin-twin transfusion, vascular anastomosis, gross

Umbilical Cord Abnormalities

22. Nuchal cord and normal placenta, gross
23. Two vessel umbilical cord, microscopic
24. Velamentous insertion of umbilical cord, gross
25. True knot of umbilical cord, gross
26. True knot of umbilical cord, gross
27. Pseudoknot of umbilical cord, gross
28. Torsion of umbilical cord, with fetal demise, gross
29. Torsion of umbilical cord, gross

Abnormalities of Placentation

30. Abnormalities of placentation, diagram
31. Placenta previa, gross
32. Placenta increta, gross
33. Placenta accreta, microscopic
34. Abruptio placenta, gross
35. Abruptio placenta, gross
36. Abruptio placenta, microscopic
37. Placenta, accessory lobe, gross
38. Circumvallate placenta, gross

Vascular, Fetal, and Maternal Abnormalities

39. Placenta, infarction, gross
40. Placenta, infarction, microscopic
41. Maternal floor infarction, low power microscopic
42. Decidual arteriolar atherosis and fibrinoid necrosis, microscopic
43. Fetal demise with placental involution, microscopic
44. Fetal demise with marked placental involution, microscopic
45. Fetal demise with marked placental involution, microscopic, trichrome stain
46. Meconium staining of placenta, gross
47. Meconium in macrophages of fetal membranes, microscopic
48. Placental hydrops and increased nucleated RBC's with alpha thalassemia major, medium power microscopic

Infections

49. Acute chorioamnionitis, microscopic
50. Placental villitis and hydrops with congenital listeriosis, medium power microscopic
51. Placental villitis and hydrops with congenital CMV infection, high power microscopic
52. Placental villitis with congenital CMV infection, high power microscopic
53. Placenta, hydrops, low power microscopic
54. Placenta, hydrops, medium power microscopic

Molar Pregnancy

55. Hydatidiform mole, gross
56. Hydatidiform mole, gross
57. Hydatidiform mole, low power microscopic
58. Hydatidiform mole, high power microscopic
59. Partial hydatidiform mole, gross
60. Partial hydatidiform mole, low power microscopic

Neoplasia

61. Placenta, chorangioma, gross
62. Placenta, chorangioma, cut surface, gross
63. Placenta, chorangioma, medium power microscopic