Antenatal diagnosis of chorioangioma of the placenta

Role of color Doppler imaging in diagnosing and managing pregnancies complicated by placental chorioangioma

“…3,4 Large tumors can have variable shape, can be divided by fibrous septa, and often protrude from the fetal surface into the amniotic cavity near the insertion of the umbilical cord 2 ( Figure 1A).…”

Large chorioangioma: Antenatal color‐flow Doppler ultrasonic imaging and its correlation with postpartum pathology

“…With the advent of ultrasonography in prenatal diagnosis, a large chorioangioma over 5 cm in diameter can be easily detected without escaping the obstetrician's notice by conventional scanning (1,2). However, to our knowledge, there have only been few reports (3,4) in the literature of attempts to apply Doppler velocimetry and color flow imaging in demonstrating chorioangioma's echogenecity and vascular dynamic, and to determine the clinical efficiency in diagnosis.…”

Magnetic resonance image findings of placental lake: report of two cases

“…Placental lakes contain turbulent blood flow on realtime imaging, and their shape can be modified by maternal position or by uterine contractions (Jauniaux and Campbell, 1990b;Jauniaux et al, 1989). Histologically, large lakes correspond to large avillous areas surrounded by normal villi, and are thought to be a nonpathologic variation of the normal placental anatomic structure that begins developing early in pregnancy (Spirt et al, 1980). Small caverns within the cotyledons are secondary to the dispersion of the free-floating terminal villi by maternal arterial jets of blood entering the intervillous space (Jauniaux et al, 1990a(Jauniaux et al, , 1989.…”