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Decidua parietalis (hormone modified endometrium) in hysterectomy specimen (partially formalin fixed). Low-lying placenta, possibly placenta previa. Cut surface of placenta.

31. Placenta accreta

 

Parenchymal bridge between digitate lobe and placental disk (formalin fixed). Digitate type of accessory lobe of placenta, attached to the main placenta by a parenchymal bridge (formalin fixed).

65. Accessory lobe: digitate type 1

 

Placenta 2 with smooth and glistening, red-blue fetal surface. Common membrane (cut down) inserting along edge of vascular equator. Placenta 1: opaque fetal surface due to the maternal inflammatory cell infiltrate of chorioamnionitis.

389. Different intrauterine environments: chorioamnionitis (L), normal (R)

 

©2004 DSM PathWorks, Inc.  All rights reserved.  This Companion Atlas CD or any part thereof, may not be reproduced by any method(s), currently known or subsequently developed, for any reason or purpose, without express written permission from the copyright holder, other than in the manner specifically described below.

The information on the CD is believed to be accurate and up to date; however, neither the author nor the publisher can accept any legal responsibility for any errors or omissions, or any consequences arising from the use of the information therein.

To the original buyer of record, however, this copyright extends the following restricted use: IMAGES MAY BE COPIED INTO PERSONAL EDUCATIONAL PRESENTATIONS OF THE BUYER OF RECORD, THAT WILL NOT BE VIDEOTAPED OR OTHERWISE COPIED FOR RESALE, AND/OR WILL NOT BE PLACED AND/OR WILL NOT BE MADE AVAILABLE TO BE PLACED ON THE INTERNET IN ANY FASHION.  Black-n-white hand-out material of the original presentation may be created and personally distributed to the audience members present for the presentation (e.g. PowerPoint hand-out).  Such hand-outs may not be sold, or otherwise distributed and/or may not be placed on the internet in any fashion.  THE IMAGES MAY NOT BE SOLD, AND/OR OTHERWISE SHARED, AND/OR PLACED ON THE INTERNET, AND/OR MADE AVAILABLE TO BE PLACED ON THE INTERNET IN ANY FASHION, without the express written permission from the copyright holder.  In addition, the original buyer of record may create one (1) copy of the CD on up to three (3) computers owned and operated by the buyer of record, not to be accessed simultaneously.

For educational use as described in the paragraph above: THE COPYRIGHT MUST BE DISPLAYED ON THE IMAGE IN THE PRESENTATION, and credit must be given in printed materials.

Companion Atlas CD also includes photos of the following:

Placenta As A Whole

placenta accreta

placenta increta

placenta previa

Shiny Schultze and Dirty Duncan presentation

torn placenta

bilobed placenta

ovoid placenta

heart shaped placenta

digitate lobe

succenturiate lobe

circummarginate placenta

circumvallate placenta

Umbilical Cord

marginal cord insertion

velamentous cord insertion

furcate cord insertion

amniotic web

interposition

false knot of cord

true cord knot

left and right cord twisting

Hyrtl anastomosis

vitelline duct

urachal remnant

funisitis

cord Candidiasis

necrotizing funisitis

umbilical cord hematoma

umbilical cord stricture

Extraplacental Membranes

decidua vera

patchy extraplacental membrane opacity

chorioamnionitis

point of membrane rupture

velamentous vascular branch

meconium

IUD in the membranes

vasa previa with rupture

Fetal Surface

disperse fetal surface vascular pattern

magistral fetal surface vascular pattern

arteries over veins

marginal zone

subchorial closing ring

bosselated subchorionic fibrin

plaque subchorionic fibrin

squamous metaplasia

yolk sac remnant

subchorionic cyst

subamniotic hemorrhage

meconium

chorioamnionitis

fetal surface stem vessel thrombosis

amnion nodosum

Amniotic Band Syndrome

Breus' mole

chorioangioma

Maternal Surface

decidua basalis

maternal surface calcification

maternal surface blood clots

abruptio placentae

maternal surface white nodules

maternal floor infarction (MFI)

Parenchyma

pale placental parenchyma

severely congested placental parenchyma

holes in the parenchyma

septal cyst

subchorionic thrombus (plaque)

avascular villi

infarcts

intervillous thrombus

severe chronic villitis

Multifetal Placentas

unfused diamniotic dichorionic twin placenta

fused diamniotic dichorionic twin placenta

diamniotic monochorionic twin placenta

bilobed-separated-by-membranes diamniotic monochorionic twin placenta

monoamniotic monochorionic twin placenta

irregular chorionic fusion

vascular equator

abnormal cord insertion

umbilical cord entanglement

different intrauterine environments

twin vascular anastomoses

Twin to Twin Transfusion Syndrome

acardiac twin

fetus papyraceous

fetus compressus

triplet placenta with monoamniotic monochorionic twins

spontaneous triamniotic monochorionic triplet placenta

Other Products of Conception

first trimester amniotic sac with yolk sac within chorionic sac

first trimester products of conception with twin embryos

decidual cast

second trimester gestational sac with fetus

partial hydaditiform mole

complete hydaditiform mole

term diamniotic dichorionic twin placenta with complete molar transformation of one placenta

choriocarcinoma

choriocarcinoma in hysterectomy specimen

happy placenta

 
© 2001 DSM PathWorks, Inc.
To contact us: placenta@netins.net.
DSM PathWorks, Inc., P.O. Box 33, St. Mary's, IA    50241
last updated 06/26/2005