Accessory lobe / bilobate placenta
Gross images
Images hosted on other servers:
Accessory lobe
Acute chorioamnionitis
Gross images
Contributed by Drucilla J. Roberts, M.D.
Patchy surface, plaque-like lesions
Yellow / cloudy fetal surface of placenta
Microscopic (histologic) images
Contributed by Drucilla J. Roberts, M.D. and AFIP
MIR stages and grades
FIR stages and grades
Umbilical cord with surface abscess
GMS stain showing invasive fungal hyphae
Acute villitis and intervillositis
Microscopic (histologic) images
Contributed by Drucilla J. Roberts, M.D.
Acute villitis and intervillositis
Mixed acute and chronic villitis
Microabscess in a term placenta
Intravascular organisms and acute villitis
Amnion nodosum
Microscopic (histologic) images
Contributed by Caroline Simon, M.D.
Fetal squamous cells in amnion
Amnionic web and amniotic band syndrome
Gross images
Images hosted on other servers:
Limited movement at the cord base
Near term placenta
Anatomy & histology-placenta & umbilical cord
Diagrams / tables
Images hosted on other servers:
Views from fetal and maternal surfaces
Gross images
Contributed by Marta Cohen, M.D.
Fetal surface
Maternal surface
Microscopic (histologic) images
Contributed by Marta Cohen, M.D.
Peripheral membranes
Umbilical cord
Basal plate
Chorionic plate
Placental villi
Immature villi
Extravillous trophoblast
Islands of extravillous trophoblast
Chorangioma
Radiology images
Contributed by Bryann Bromley, M.D.
Transabdominal ultrasound
Color Doppler
Gross images
Contributed by Baris Boyraz, M.D., Ph.D. and Drucilla J. Roberts, M.D.
Typical chorangioma
Infarcted large chorangioma
Large chorangioma
Microscopic (histologic) images
Contributed by Baris Boyraz, M.D., Ph.D. and Drucilla J. Roberts, M.D.
Well circumscribed mass
Capillary proliferation and surrounding stroma
Cellular chorangioma
Trophoblast hyperplasia
Chorangiomatosis
Microscopic (histologic) images
Contributed by Shahrazad Saab, M.D.
Term placenta with intrauterine growth restriction
Term placenta with delayed villous maturation
Twin placentas (34 weeks gestational age) with fetal growth restriction of both fetuses
Term placenta with severe fetal growth restriction
Chorangiosis
Microscopic (histologic) images
Contributed by Drucilla J. Roberts, M.D.
Term placenta showing chorangiosis
Choriocarcinoma
Radiology images
Contributed by Lawrence Hsu Lin, M.D., Ph.D. and Deborah DeLair, M.D.
Ultrasound of uterine choriocarcinoma
CXR with lung metastases
CT scan with lung metastases
CT scan with brain metastases
MRI scan with brain metastases
Gross images
Contributed by Lawrence Hsu Lin, M.D., Ph.D. and Deborah DeLair, M.D.
Uterine tumor
Large uterine tumor
Cervical involvement
Tubal tumor
Images hosted on other servers:
Intraplacental tumor
Microscopic (histologic) images
Contributed by Regina Schultz, M.D., Ph.D. and Tatyana Zinger, D.O.
Solid tumor without chorionic villi
Triphasic neoplasm
Increased mitotic activity
Intraplacental choriocarcinoma
Molecular / cytogenetics images
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STR analysis of gestational choriocarcinoma
STR analysis of nongestational choriocarcinoma
Circumvallate placenta
Gross images
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Double back membranes
Complete hydatidiform mole
Diagrams / tables
Contributed by Rachelle Mendoza, M.D. and Raavi Gupta, M.D.
Karyotypes of complete mole
Radiology images
Images hosted on other servers:
Ultrasound image of complete mole
Gross images
Images hosted on other servers:
Complete mole
Microscopic (histologic) images
Contributed by Rachelle Mendoza, M.D. and Raavi Gupta, M.D.
Hydropic villi
Trophoblastic proliferation
Cistern formation
Trophoblastic proliferation and atypia
p57 immunostain
Molecular / cytogenetics images
Images hosted on other servers:
Electrophoretogram
of short tandem
repeats
Complete mole FISH using polymorphic deletion probe
Videos
Complete hydatidiform mole histopathology
COVID-19 placentitis
Gross images
Contributed by Sanjita Ravishankar, M.D.
Pale consolidation of disc
Microscopic (histologic) images
Contributed by Sanjita Ravishankar, M.D.
Perivillous fibrin deposition and intervillous thrombus
Perivillous fibrin deposition and trophoblast necrosis
Chronic intervillositis and trophoblast necrosis
COVID-19 capsid protein
Decidual arteriopathy
Microscopic (histologic) images
Contributed by Jonathan L. Hecht, M.D., Ph.D.
Normal decidual vessel at 37 weeks
Normal muscular
decidual arteriole
at 8 weeks
Normal muscular
decidual arteriole
at 8 weeks (CD34)
Hypertrophic decidual arteriopathy
Hypertrophic decidual arteriopathy (CD34)
Severe decidual arteriopathy
Contributed by Yan Lemeshev, M.D.
Atherosis with fibrinoid necrosis
Early first trimester pregnancy loss
Gross images
Contributed by Kathleen Sirois, PA (ASCP)
Missed abortion at 9 weeks gestation
Chorionic villi in saline
Microscopic (histologic) images
Contributed by Chrystalle Katte Carreon, M.D. and Drucilla J. Roberts, M.D.
Products of conception specimen
Missed abortion exhibiting villous edema
Missed abortion exhibiting villous sclerosis
POC specimen with recognizable amnion
Placental implantation site
Septic abortion
Aneuploid gestation
Normal p57 staining pattern
Cytology images
Contributed by Drucilla J. Roberts, M.D.
Blood with rare
syncytiotrophoblast
cells
Videos
PathCast: products of conception by Dr. Vanda Torous
Embryonic remnants
Diagrams / tables
Images hosted on other servers:
Gross images
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Yolk sac remmant
Microscopic (histologic) images
Images hosted on other servers:
Allantoic duct remnant
Omphalomesenteric duct remnant
Epithelioid trophoblastic tumor
Radiology images
Images hosted on other servers:
Ultrasound with Doppler
Abdominal wall mass CT
MRI of uterine masses
Clinical images
Images hosted on other servers:
Hysteroscopy
Laparoscopic surgery
Gross images
Images hosted on other servers:
Expansile mass with fleshy, solid appearance
ETT involving uterine fundus
Necrotic and hemorrhagic mass
Microscopic (histologic) images
Contributed by Rachelle Mendoza, M.D. and Sonali Lanjewar, M.D., M.B.B.S.
Nests
Epithelioid tumor cells
Extensive necrosis
Decidualized stroma in periphery
ETT with chorionic type intermediate trophoblasts
p63
CK5/6
Ki67
Molecular / cytogenetics images
Images hosted on other servers:
DNA genotyping analysis
Erythroblastosis
Microscopic (histologic) images
Images hosted on other servers:
Placental hydropic change accompanied by increased fetal erythroblasts and nucleated RBCs in fetal vessels in villi
Exaggerated placental site
Microscopic (histologic) images
Contributed by Raavi Gupta, M.D., Absia Jabbar, M.D. and Sonali Lanjewar, M.D., M.B.B.S.
Fetal thrombotic vasculopathy
Microscopic (histologic) images
Contributed by Hillary Rose Elwood, M.D.
Sections demonstrate intravascular fibrin thrombi of skin / subcutis, not placenta; the patient was found to have antiphospholipid antibody syndrome
Fetus in fetu
Radiology images
Case #385
Radiograph showing
noncalcified
vertebral column
Microscopic (histologic) images
Case #385
Various images
Furcate insertion
Gross images
Images hosted on other servers:
Gross pathology of the placenta
Grossing
Gross images
Contributed by Sanjita Ravishankar, M.D.
Accessory lobe
Bilobed placenta
Circumvallate membrane insertion
Squamous metaplasia
Amnion nodosum
Hypercoiled cord with meconium
Velamentous umbilical cord
Disrupted maternal surface
Avascular villi
Intervillous thrombus
Subchorionic fibrin
Large infarct
Artery to artery anastomosis
Dichorionic twin
Diagrams / tables
Contributed by Sanjita Ravishankar, M.D.
Placenta requisition
Basal plate sections
Images hosted on other servers:
Placental shape abnormalities
Grossing-products of conception
Gross images
Contributed by Sanjita Ravishankar, M.D.
Chorionic villi
Decidua
Decidua and chorionic villi
Complete mole with vesicles
Complete mole
Hematoma
Clinical images
Images hosted on other servers:
Rupture of umbilical vessels
Gross images
Images hosted on other servers:
Hematoma of umbilical cord, placenta was delivered by cesarean section, no traction or clamping of this segment of cord
Hepatocellular adenoma-like lesion of placenta
Hydatidiform mole
Radiology images
Images hosted on other servers:
Complete hydatidiform mole with cystic areas
Partial hydatidiform mole
Gross images
Images hosted on other servers:
Hydatidiform mole (left) and normal placenta (right)
Microscopic (histologic) images
Contributed by Fahad N. Sheikh, M.D.
Hydropic villi
Cistern formation
Circumferential trophoblastic proliferation
Trophoblastic proliferation and atypia
Partial mole with 2 populations of villi
p57 immunostain
Hydrops fetalis
Microscopic (histologic) images
Images hosted on other servers:
Placental hydrops
Infarct
Gross images
Contributed by Athena Chen, M.D., Drucilla Roberts, M.D., Sarah Ferguson, PA (ASCP) and Justin Susterich, PA (ASCP)
Large, fairly acute infarct
Subacute infarct with hemorrhage
Remote infarct
Marginal infarct
Microscopic (histologic) images
Contributed by Athena Chen, M.D.
Remote infarct
Subacute infarct
Villous necrosis
Early villous necrosis
Intrauterine fetal demise
Clinical images
Contributed by Theonia K. Boyd, M.D.
Postmortem umbilical cord discoloration
Gross images
Contributed by Theonia K. Boyd, M.D.
Umbilical cord and fetal surface discoloration
Formalin fixed stillbirth cord
Microscopic (histologic) images
Contributed by Theonia K. Boyd, M.D.
Ischemic umbilical myocyte elongation
Ischemic umbilical myocyte pyknosis
Postmortem chorioamnionitis
Nucleated fetal red blood cells
Intravascular karyorrhexis
Stem vessel obliteration
Avascular villi
Invasive hydatidiform mole
Radiology images
Images hosted on other servers:
Ill defined lesion with solid and cystic areas
Gross images
Images hosted on other servers:
Hydatidiform mole invading the cervix
Microscopic (histologic) images
Contributed by Sonali Lanjewar, M.D., M.B.B.S.
Villi invading myometrium
Trophoblastic proliferation
Knots
Clinical images
Images hosted on other servers:
True knot in umbilical cord
Gross images
AFIP images
True knot with placental infarction
Images hosted on other servers:
True knot
False knot
Long cord
Clinical images
Images hosted on other servers:
Wrapped around fetus
Gross images
Images hosted on other servers:
Various images
Marginal insertion
Gross images
Images hosted on other servers:
Marginal "battledore" insertion
Marginal insertion
Massive perivillous fibrin deposition / maternal floor infarction
Diagrams / tables
Not applicable
Radiology images
Images hosted on other servers:
Thick and inhomogeneous placenta
Clinical images
- Not relevant to this diagnosis
Gross images
Contributed by Bradley Quade, M.D., Ph.D.
Term placenta with MPFD
Microscopic (histologic) images
Contributed by Lauren J. Ray, M.D.
Maternal floor infarction
Massive perivillous fibrin deposition
Cytology images
- Not relevant to this diagnosis
Electron microscopy images
- Not relevant to this diagnosis
Molecular / cytogenetics images
- Not relevant to this diagnosis
Videos
No information provided
Maternal vascular malperfusion
Microscopic (histologic) images
Contributed by Jonathan L. Hecht, M.D., Ph.D.
Decidual arteriopathy
Infarction hematoma
Trophoblast (fibrinoid) islands
Distal villous hypoplasia
Syncytial knots
Accelerated maturation
Videos
General approach to diagnostic reporting
Clinical relationship to neonatal encephalopathy
Meconium staining
Gross images
Contributed by Lucy Ma, M.D. and Joanna Chan, M.D.
Fetal chorionic plate
Yellow-green staining
Dull green staining
Images hosted on other servers:
Green-black meconium
Microscopic (histologic) images
Mesenchymal dysplasia
Gross images
Contributed by Govindaswamy Koteeswaran, M.D.
Microscopic (histologic) images
Contributed by Govindaswamy Koteeswaran, M.D.
Metastases
Microscopic (histologic) images
Images hosted on other servers:
Nuchal cord
Clinical images
Images hosted on other servers:
Nuchal cord
Partial hydatidiform mole
Diagrams / tables
Images hosted on other servers:
Algorithmic approach to diagnosis
Radiology images
Images hosted on other servers:
Partial molar pregnancy
Gross images
Images hosted on other servers:
Partial hydatidiform mole
Microscopic (histologic) images
Contributed by Aurelia Busca, M.D., Ph.D.
2 populations of villi
Edematous hydropic villi with pseudoinclusions
Hydropic villi with cistern formation
p57 nuclear staining
Videos
PathCast presentation on molar pregnancies and gestational trophoblastic
Placenta accreta, increta and percreta
Diagrams / tables
Images hosted on other servers:
Placenta accreta, increta and percreta
Radiology images
Images hosted on other servers:
Ultrasound suspicious for placenta accreta
Ultrasound Doppler of placenta percreta
Ultrasound Doppler of placenta accreta
Clinical images
Images hosted on other servers:
Intraoperative findings of placenta percreta
Intraoperative findings of placenta accreta
Gross images
Contributed by Fabiola Medeiros, M.D.
Placenta accreta
Placenta increta
Placenta previa and percreta
Placenta previa and percreta adherent to bladder
Disrupted manually removed placenta
Microscopic (histologic) images
Contributed by Fabiola Medeiros, M.D.
Placenta accreta
Trophoblastic versus decidual cells
Placenta increta
Placenta percreta
Occult placenta accreta
Videos
Introduction to placenta accreta
Placenta previa
Diagrams / tables
Images hosted on other servers:
Placenta previa
Gross images
Images hosted on other servers:
Placenta previa
Placental site nodule
Radiology images
Images hosted on other servers:
Placental site nodule
hysterosalpingogram
Gross images
Images hosted on other servers:
PSN with PSTT / ETT
Microscopic (histologic) images
Contributed by Rachelle P. Mendoza, M.D.
PSN in endometrial sampling
PSN architecture
PSN cellular morphology
PSN in cervical biopsy
HLA-G / Ki67 dual immunostain
Placental site trophoblastic tumor
Diagrams / tables
Images hosted on other servers:
Origin of PSTT
Radiology images
Images hosted on other servers:
Uterine ultrasound
Pelvic MRI
Uterine MRI
Gross images
Contributed by Jonathan Keow, M.D., Ph.D., M.Sc.
Anterior endomyometrium with exophytic mass
Cross sections of anterior endomyometrium
Cross section of posterior endomyometrium
Opened hysterectomy specimen
Images hosted on other servers:
Uterus with PSTT
Microscopic (histologic) images
Contributed by Rachelle Mendoza, M.D.
Infiltrative pattern with necrosis
Cell morphology
Vascular invasion
Prolapsed umbilical cord
Diagrams / tables
Images hosted on other servers:
Schematic
representation
of cord prolapse
preceding delivery
Retroplacental hematoma with intraplacental extension (placental abruption)
Radiology images
Images hosted on other servers:
Gross images
Contributed by Sanjita Ravishankar, M.D.
Retroplacental hematoma
Clot removed
Marginal hematoma
Cross section
Chronic abruption
Images hosted on other servers:
Abruptio placenta with dark red retroplacental blood clot
Microscopic (histologic) images
Contributed by Sanjita Ravishankar, M.D.
Hematoma and infarct
Hemorrhage and infarct
Hemorrhage
Intravillous hemorrhage
Circumvallate membrane insertion
Hemosiderin
Videos
Disseminated intravascular coagulation and placental abruption
Short cord
Gross images
Images hosted on other servers:
Short umbilical cord sequence (SUCS)
Single umbilical artery and supernumerary vessels
Microscopic (histologic) images
Images hosted on other servers:
Two vessel umbilical cord
Thin cord
Gross images
Images hosted on other servers:
Fig C: comparative image
of a thin umbilical cord
(bottom) with a normal
diameter umbilical cord
Torsion / hypercoiling
Gross images
Images hosted on other servers:
Torsion of umbilical cord
Toxemia of pregnancy (preeclampsia and eclampsia)
Diagrams / tables
Images hosted on other servers:
Diagnostic template:
maternal vascular
malperfusion
Gross images
Images hosted on other servers:
Focal placental infarction
Extensive placental infarction
Placental infarction, hematoma
Microscopic (histologic) images
Contributed by Khaldoon Aljerian, M.D., M.H.Sc.
Decidual vasculopathy
Decidual vasculopathy thrombus
Retroplacental hemorrhage thrombus
Videos
Categories of placental pathology
by Dr. Drucilla Roberts
Twin - twin transfusion
Gross images
Images hosted on other servers:
Twin - twin transfusion
Anastomosis
Twins
Diagrams / tables
Images hosted on other servers:
Placentation in monozygotic and dizygotic twins
Radiology images
Images hosted on other servers:
Dichorionic - diamniotic twins
Twin pregnancy with defect
Twin
oligohydramnios
- polyhydramnios
sequence
Cotwin demise
Gross images
Images hosted on other servers:
Dichorionic diamnionic twin placenta
Dichorionic diamnionic
and monochorionic
quadruplet placenta
Twin placenta - acardia
Monochorionic placentas
Microscopic (histologic) images
Contributed by Shahrazad Saab, M.D.
Dichorionic diamnionic dividing membrane
Monochorionic diamnionic dividing membrane
Umbilical vasculitis and funisitis
Gross images
Images hosted on other servers:
Listeria monocytogenes
Concentric waves of inflammation
Barber's pole umbilical cord
Microscopic (histologic) images
Contributed by Paul J. Kowalski, M.D. (source: University of Toronto)
Panvasculitis and acute funisitis
Peripheral microabscess
Candida fungal elements
Velamentous insertion
Gross images
Images hosted on other servers:
Velamentous insertion of umbilical cord
Back to top
Recent Placenta Pathology booksCrum: 2017
Heller: 2015
IARC: 2020
Kraus: 2005
Nucci: 2020
Oliva: 2019
Roberts: 2021
Find related Pathology books:
gynecologic,
placenta