1 The feto-placental unit EMBRYOLOGY AND ANATOMY:
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
1
The feto-placental unit
EMBRYOLOGY AND ANATOMY:
2
EMBRYOLOGY AND ANATOMY:
Moore & Persaud: The developing human- Clinically oriented embryology
EMBRYOLOGY AND ANATOMY:
Moore & Persaud: The developing human- Clinically oriented embryology
3
EMBRYOLOGY AND ANATOMY: FETAL SURFACE
EMBRYOLOGY AND ANATOMY:MATERNAL SURFACE
4
HISTOLOGY: UMBILICAL CORD
Decidua
Chorion
Amnion
HISTOLOGY: MEMBRANES
5
HISTOLOGY: PLACENTAL DISC
HISTOLOGY: PLACENTAL DISC-FETAL SURFACE
6
HISTOLOGY: PLACENTAL DISC- MATERNAL SURFACE
Moore & Persaud: The developing human- Clinically oriented embryology
HISTOLOGY: VILLOUS ARCHITECTURE
7
HISTOLOGY: VILLOUS ARCHITECTURE
Moore & Persaud: The developing human- Clinically oriented embryology
FUNCTIONS OF THE PLACENTA
8
Placental Endocrine Functions : Steroid Hormones
MOTHER PLACENTA FETUS
LDL Cholesterol LDL Cholesterol LDLCholesterol(Blood) (Blood)
Progesterone
DHEAS DHEAS DHEAS(Adrenal) (Adrenal)
Sulfatase3 Beta OH steroid DHAromatase
EstroneEstradiol
Key:DHEAS : Dehydroepiandrosterone sulfate
3 Beta OH steroid DH : 3 beta hydroxy steroid dehydrogenase
Figure modified from: Carr, BR, The maternal-fetal-placental unit. In: Becker KL,ed. Principles and Practice of Endocrinology and Metabolism, 3rd ed. LippincottWilliams & Wilkins, Philadelphia. 2001: 1061.
DEVELOPMENTAL PROBLEMS
9
ECTOPIC IMPLANTATION
Moore & Persaud: The developing human- Clinically oriented embryology
PLACENTA PREVIA & PLACENTA ACCRETA
Moore & Persaud: The developing human- Clinically oriented embryology
10
MECHANICAL PROBLEMSMECHANICAL PROBLEMS
CORD KNOTS & TWISTS
11
CORD: VELAMENTOUS INSERTION
Kaplan: Color atlas of gross placental pathology.
ABNORMAL MEMBRANE ATTACHMENT
12
MEMBRANE RUPTURE: AMPUTATIONS
INFLAMMATION: CHORIOAMNIONITIS
13
Acute Funisitis
Candida Funisitis
14
Candida Funisitis
Normal membranes
Decidua
Chorion
Amnion
15
Acute chorioamnionitis
Meconium
16
Acute villitis Acute intervillositis.
Placental infection: Listeria
17
Listeriosis
Placental MicroabscessesVillous necrosisHeavy growth of Listeria in postmortem cultures
TRANSPLACENTAL (TORCH) INFECTIONS
18
Parvoviral inclusions in villi
Cytomegalovirus: Characteristic nuclear inclusions
19
Chronic Villitis (non-specific)
VASCULAR PROBLEMS
20
VASCULAR: THROMBOSIS IN FETAL VESSELS
VASCULAR: FETOMATERNAL HEMORRHAGE
21
Vascular: Pre-eclampsia
Vascular: Pre-eclampsia - fibrinoid change, foamy histiocytes
22
Vascular: Placental Infarct
Vascular: Placental Infarct
23
Vascular: Placental Abruption
Vascular: Placental Abruption
24
NEOPLASIA
CHORANGIOMA
25
CHORANGIOMA
HYDATIDIFORM MOLES
COMPLETE = Diploid2 Pat, 0 Mat.
PARTIAL = Triploid2 Pat, 1 Mat
26
MULTIPLE GESTATIONS
Twin placenta- fused discs
27
Dichorionic Diamnionic placenta
Monochorionic Diamnionic placenta
28
Monochorionic twins with Vascular anastomosis
Twin-Twin transfusion syndrome
29
Twin placenta- Monoamnionic, with entangled cords
Twin placenta- fetus papyraceus
30
The feto-placental unit
Related Documents
