Chorangioma
Pronunciation: kor-an-jee-OH-mah
Benign vascular tumor of the placenta that can affect fetal circulation and growth.
Full Definition
Chorangioma is the most common benign tumor of the placenta, arising from placental blood vessels. These tumors appear as well-defined, echogenic masses within the placental tissue on ultrasound. Large chorangiomas (>5cm) can act as arteriovenous malformations, potentially leading to high-output cardiac failure in the fetus, polyhydramnios, intrauterine growth restriction, or preterm delivery. Smaller lesions are typically asymptomatic and require only monitoring.
Usage
Usage note: Specify size as it determines clinical significance and management approach.
In Context
- "A 6cm chorangioma was noted in the placenta with associated polyhydramnios." — Maternal-fetal medicine consultation
- "Serial monitoring is recommended for the large chorangioma to assess fetal cardiac status." — Ultrasound follow-up plan