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. Umbilical cord, comparison of two vessel and three vessel cords, gross
12. Umbilical cord, normal three vessel cord, microscopic
13. Distribution of the three umbilical vessels, gross
14. Placenta, yolk sac remnant, gross

Twinning

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

Umbilical Cord Abnormalities

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

Abnormalities of Placentation

33. Abnormalities of placentation, diagram
34. Placenta previa, gross
35. Placenta increta, gross
36. Placenta accreta, microscopic
37. Abruptio placenta, gross
38. Abruptio placenta, gross
39. Abruptio placenta, microscopic
40. Placenta, accessory lobe, gross
41. Placenta, accessory (succenturiate) lobe, gross
42. Circumvallate placenta, gross

Vascular, Fetal, and Maternal Abnormalities

43. Placenta, infarction, focal, gross
44. Placenta, infarction, extensive, gross
45. Placenta, infarction, microscopic
46. Maternal floor infarction, gross
47. Maternal floor infarction, low power microscopic
48. Decidual arteriolar atherosis and fibrinoid necrosis, microscopic
49. Fetal demise with placental involution, microscopic
50. Fetal demise with marked placental involution, microscopic
51. Fetal demise with marked placental involution, microscopic, trichrome stain
52. Meconium staining of placenta, gross
53. Meconium in macrophages of fetal membranes, microscopic
54. Placental hydrops and increased nucleated RBC's with alpha thalassemia major, medium power microscopic
55. Amnion nodosum of fetal surface, gross
56. Amnion nodosum of fetal surface, gross

Infections

57. Acute chorioamnionitis, microscopic
58. Placental villitis and hydrops with congenital listeriosis, medium power microscopic
59. Placental villitis and hydrops with congenital CMV infection, high power microscopic
60. Placental villitis with congenital CMV infection, high power microscopic
61. Placenta, hydrops, low power microscopic
62. Placenta, hydrops, medium power microscopic

Molar Pregnancy

63. Hydatidiform mole, gross [US]
64. Hydatidiform mole, gross
65. Hydatidiform mole, low power microscopic
66. Hydatidiform mole, high power microscopic
67. Partial hydatidiform mole, gross
68. Partial hydatidiform mole, low power microscopic

Neoplasia

69. Placenta, chorangioma, gross
70. Placenta, chorangioma, cut surface, gross
71. Placenta, chorangioma, medium power microscopic