What is a decidual tissue?

What is a decidual tissue?

A decidual cast is a large, intact piece of tissue that you pass through your vagina in one solid piece. It happens when the thick mucus lining of the uterus, called the decidua, sheds in the near exact shape of your uterine cavity, creating a triangular “cast.”

What is decidua placenta?

The decidua is the specialized layer of endometrium that forms the base of the placental bed. The corpus luteum of the ovary (and later, the placenta itself) produces progesterone that induces endometrial stromal cells to undergo cellular modifications and vascular alterations termed the ‘decidual reaction.

What does decidual mean?

1 : the part of the endometrium that in higher placental mammals undergoes special modifications in preparation for and during pregnancy and is cast off at parturition. 2 : the part of the endometrium cast off in the process of menstruation.

Is decidua the same as placenta?

The decidua forms the maternal part of the placenta and remains for the duration of the pregnancy. It is shed off during childbirth—hence why the term is used, “decidua” having the meaning of falling away, as in the word deciduous.

Can you pass tissue and still be pregnant?

Passing tissue may be a sign of miscarriage. If you pass tissue or have moderate bleeding any time during pregnancy, call your doctor immediately. If possible, collect the tissue and bring it with you when you see your doctor.

Is it normal to have tissue discharge during pregnancy?

Passing Tissue from the Vagina However, when the discharge is significant — appearing in grape-like clusters, often with fluid — it could be pregnancy tissue you’re looking at. See your doctor even if you’re not sure. Even a minor vaginal infection should be looked at and treated during pregnancy.

What does decidua look like?

When it’s expelled, a decidual cast will be red or pink. It will be somewhat triangular and close to the size of your uterus. This is because the entire lining of the uterus exited as one piece. The decidual cast will also appear fleshy because it’s made up of tissue.

What is decidual reaction in pregnancy?

The decidual reaction is seen in very early pregnancy in the generalized area where the blastocyst contacts the endometrial decidua. It consists of an increase in secretory functions of the endometrium at the area of implantation, as well as a surrounding stroma that becomes edematous.

Can decidua cause a miscarriage?

The irreversible growth arrest of decidua cells, whose role in the maintenance of the pregnancy microenvironment is known, may be one cause of miscarriage in MPA treated pregnant women.

Can I pass tissue and not miscarry?

Incomplete Miscarriage The pregnancy is definitely miscarrying, but only some of the pregnancy tissue has passed. The tissue that is still in the uterus will eventually pass on its own. Some women may need emergency treatment if there is also heavy vaginal bleeding.

What does passed pregnancy tissue look like?

Not all women will be able to tell that they have passed their baby. Other pregnancy tissue can look like a spongy blood clot. It may be a different colour from the other clots you have passed.

What color is decidual bleeding?

Before your body expels the decidual cast, you may experience bleeding, spotting, and abdominal pain or menstrual cramps, which may be severe. When it’s expelled, a decidual cast will be red or pink. It will be somewhat triangular and close to the size of your uterus.

Can a decidual reaction cause a miscarriage?

Role in diseases and disorders. Abnormalities in decidualization have been implicated in diseases such as endometriosis, in which impaired decidualization leads to ectopic uterine tissue growth. Lack of decidualization has also been linked to higher rates of miscarriage.

What does placental tissue look like in miscarriage?

If you are less than eight weeks pregnant when the miscarriage occurs, the expelled tissue will look no different from heavy menstrual bleeding. If you are further along in the pregnancy, you may see some blood clots and tissue that is firmer or lumpy-looking, which is placental or afterbirth tissue.