A molar pregnancy occurs when the fertilisation of the egg by the sperm goes wrong and leads to the growth of abnormal cells or clusters of water filled sacs inside the womb. These tumours are rare.
What causes a molar pregnancy?
What causes a molar pregnancy? Molar pregnancies result when specific genetic errors occur during the fertilization of an egg by a sperm. In a healthy pregnancy, a placenta forms to nourish the growing embryo. With a molar pregnancy, instead of a placenta, a tumor forms inside the uterus.
Do you need sperm for a molar pregnancy?
Complete molar pregnancy.
An egg with no genetic information is fertilized by a sperm. It does not develop into a fetus. It continues to grow as a lump of abnormal tissue that looks a bit like a cluster of grapes and can fill the uterus.
Who is at risk for molar pregnancy?
You may be more likely than other women to have a molar pregnancy if you: Are younger than 20 or older than 35. The risk is higher if you’re older than 40.
When is a molar pregnancy usually detected?
A molar pregnancy occurs when the tissue surrounding a fertilised egg develops abnormally. A range of symptoms may appear by the fourth month of pregnancy but often molar pregnancy is discovered when ultrasound scans are done in the first trimester of a pregnancy.
Is a molar pregnancy a real baby?
Complete molar pregnancies have only placental parts (there is no baby) and form when the sperm fertilizes an empty egg. Because the egg is empty, no baby is formed. The placenta grows and produces the pregnancy hormone, hCG. Unfortunately, an ultrasound will show that there is no fetus, only a placenta.
Can a baby survive a molar pregnancy?
The incidence of a normal live fetus and a partial molar placenta is extremely rare. Although triploidy is the most frequent association, a fetus with normal karyotype can survive in cases of partial molar pregnancy.
How do they remove a molar pregnancy?
To treat a molar pregnancy, your doctor will remove the molar tissue from your uterus with a procedure called dilation and curettage ( D&C ). A D&C is usually done as an outpatient procedure in a hospital.
Is a partial molar pregnancy twins?
A partial hydatidiform mole occurs with an unviable fetus, and thus gestation should be terminated. On the other hand, placental mesenchymal dysplasia and a twin molar pregnancy can coexist with the presence of a viable and normal fetus. In such cases, the pregnancy may be allowed to progress.
How high is hCG molar pregnancy?
The measurement of high hCG levels in excess of 100,000 mIU/mL suggests the diagnosis of a complete molar pregnancy, particularly when associated with vaginal bleeding, uterine enlargement and abnormal ultrasound findings.
How common is molar pregnancy?
Approximately 1 in every 1,000 pregnancies is diagnosed as a molar pregnancy. Various factors are associated with molar pregnancy, including: Maternal age.
What happens if you get pregnant right after a molar pregnancy?
They usually do this about 6 to 8 weeks after any pregnancy, including miscarriage. Most women (more than 98%) who become pregnant after a molar pregnancy will not have another molar pregnancy. There is also no increased risk of complications in future pregnancies.
Does molar pregnancy show on ultrasound?
Diagnosis and tests
A molar pregnancy can usually be diagnosed by abdominal ultrasound, which can show the presence of cysts in the uterus. A complete mole pregnancy may be easier to detect by ultrasound than a partial mole pregnancy. A woman will also be given a blood test to measure her levels of hCG.
Can you naturally miscarry a molar pregnancy?
A molar pregnancy will not be able to survive. It may end on its own, with a miscarriage. If this does not happen, it’s usually treated with a procedure to remove the pregnancy. You’ll usually be given a general anaesthetic before the procedure, so you’ll be asleep.
Do hCG levels rise in molar pregnancy?
When a woman has a molar pregnancy she experiences the symptoms of pregnancy because the placenta continues to make the pregnancy hormone human chorionic gonadotrophin (hCG). However, the level of hCG is usually higher than normal, which explains why morning sickness can be sometimes more severe than usual.