Placenta

• placentitis
  6 January

  WKP
  Types
  acute placentitis
  chronic placentitis
  Synopsis
  villitis : inflammation of chorionic villi
  intervillositis, inflammation of the intervillous space

• placental teratoma
  20 December 2021

  Definition : Teratoma of the placenta is a rare non-trophoblastic benign tumour. Placental teratomas are thought to arise from germ cells, which migrate from the dorsal wall of the yolk sac. These tumours contain elements derived from multiple germ cell layers.
  Placental teratomas always lie between the amnion and the chorion, usually on the fetal surface of the placenta, but sometimes, within the membranes.
  The origin of placental teratoma is obscure. Placental teratomas originate from (...)

• placenta sampling
  29 September 2020

  See also
  sampling
  Open references
  https://meridian.allenpress.com/aplm/article/140/7/698/65370/Sampling-and-Definitions-of-Placental-Lesions

• placental pathology
  29 September 2020

  See also : placenta
  Open references
  https://meridian.allenpress.com/aplm/article/140/7/698/65370/Sampling-and-Definitions-of-Placental-Lesions

• chorionic villi
  15 September 2020

  WKP
  See also
  chorionic villi anomalies

• epithelioid trophoblastic tumor
  16 November 2019

  See also
  trophoblastic anomalies

• placental site nodule
  16 November 2019

  Images
  Endometrial curettage for polyps https://twitter.com/DrEstherAdler/status/1453015101141880834
  Synopsis
  Recent pregnancy or cesarean section or therapeutic abortion.
  Stains include PLAP, Inhibin ,p6 3,EMA .
  About 55% can also express GATA3 (intermediate trophoblast)
  See also
  trophoblastic anomalies

• placental site trophoblastic tumor
  16 November 2019

  See also
  trophoblastic anomalies

• exaggerated placental site
  16 November 2019

  See also
  trophoblastic anomalies

• decidua
  30 October 2018

  WKP
  Definition : The decidua is the uterine lining (endometrium) during a pregnancy, which forms the maternal part of the placenta. It is formed under the influence of progesterone and forms highly characteristic cells.

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