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A subamniotic hematoma resembling a deflated balloon.
Ken-ichi Shukunami1, Makoto Orisaka, Sanae Orisaka
1Department of Obstetrics and Gynecology, University of Fukui, Matsuoka-Cho, Yoshida-Gun, Fukui, 910-1193, Japan.
Summary
Subamniotic hematomas, placental lesions from vessel rupture, can shrink during pregnancy. This case shows a shrinking hematoma presenting as a placental cyst at delivery, linking prenatal findings to placental structure.
Area of Science:
- Obstetrics and Gynecology
- Perinatology
- Pathology
Background:
- Subamniotic hematoma is a placental lesion caused by allantochorionic vessel rupture.
- Prenatal diagnosis and monitoring of subamniotic hematomas are crucial for understanding pregnancy outcomes.
- The relationship between lesion reduction and placental structure at delivery requires further investigation.
Observation:
- A case of subamniotic hematoma detected prenatally is presented.
- The hematoma demonstrated a decrease in size during the third trimester of pregnancy.
- At delivery, the lesion appeared as a cystic structure, resembling a deflated balloon on the placental surface.
Findings:
- The study reports a subamniotic hematoma that reduced in size during pregnancy.
- The reduced hematoma presented as a placental surface cyst at the time of delivery.
- Literature review on placental surface cysts detected by prenatal ultrasound is included.
Implications:
- This finding suggests a potential resolution pathway for subamniotic hematomas.
- Understanding the evolution of these lesions can improve prenatal counseling and management.
- Further research into placental cyst formation and resolution is warranted.