Placental Hemangiomas: Causes, Risks, and Follow-Up Care

Placental vascular tumor

Hello Dr.
Hsu, I discovered that I had a placental hemangioma at 21 weeks of pregnancy, which led to preterm labor at 28 weeks due to polyhydramnios.
The tumor was also removed during delivery.
I am unsure why a hemangioma developed during pregnancy, whether it will recur in the future, and if further examinations are necessary.
Could you please provide a detailed explanation? Thank you.

Cai Xiaojie, 20~29 year old female. Ask Date: 2000/12/20

Dr. Xu Junzheng reply Obstetrics and Gynecology

The cause of hemangiomas is unknown, but the recurrence rate is very low, so no further examination is necessary.
Thank you.

Reply Date: 2000/12/20

More Info

Placental hemangiomas, also known as placental vascular tumors, are benign tumors that can occur in the placenta during pregnancy. While the exact cause of these tumors remains unclear, they are thought to arise from abnormal proliferation of blood vessels in the placenta. This condition is relatively rare, and its implications can vary based on the size and location of the hemangioma.

In your case, the discovery of a placental hemangioma at 21 weeks of gestation, which subsequently led to complications such as polyhydramnios (excess amniotic fluid) and preterm labor at 28 weeks, is significant. The presence of a hemangioma can sometimes be associated with increased blood flow or vascular changes in the placenta, which may contribute to such complications. However, it is essential to note that not all cases of placental hemangiomas lead to adverse outcomes, and many women can have successful pregnancies despite this condition.

Regarding the recurrence of placental hemangiomas, the good news is that they are typically benign and have a low recurrence rate after removal. Since the hemangioma was excised during delivery, the likelihood of it reappearing in future pregnancies is minimal. However, it is crucial to maintain regular follow-up care with your healthcare provider, especially if you plan to conceive again. This follow-up may include ultrasounds or other imaging studies to monitor any potential complications in subsequent pregnancies.

In terms of further examinations, routine monitoring is generally sufficient unless there are specific concerns or symptoms that arise. If you experience any unusual symptoms in future pregnancies, such as excessive bleeding, severe abdominal pain, or other concerning signs, it is essential to seek medical attention promptly.

Additionally, it is important to discuss any future pregnancies with your healthcare provider, who can provide personalized advice based on your medical history and the specifics of your previous pregnancy. They may recommend a more detailed ultrasound or other assessments to ensure that both you and your baby are healthy.

In summary, while placental hemangiomas can pose risks during pregnancy, the overall prognosis is generally favorable, especially after surgical removal. Regular follow-up care and open communication with your healthcare provider will be key to managing your reproductive health moving forward. If you have any further questions or concerns, do not hesitate to reach out to your medical team for guidance.

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