They identified chorangiosis as the most frequent lesion, whereas chorangioma
was found less frequently.
It must be differentiated from placental congestion, tissue ischemia, chorangioma
and chorangiomatosis (3,4).
The placenta had a 0.6 cm in the largest dimension chorangioma
but otherwise was unremarkable.
Villous capillary lesions of the placenta: distinctions between chorangioma
, chorangiomatosis, and chorangiosis.
Large placental chorangioma
. Acta Obstet Gynecol Scand 2001; 80: 965-6.
is an expansile nodular lesion composed of capillary vascular channels, intervening stromal cells and surrounding trophoblasts.
Villous capillary lesions such as chorangiosis (Figures 1 and 2) and chorangioma
(Figure 3) were found with increased frequency in the study group compared to the control group placentae (Table 3).
Other indications for fetal interventions include: thoracic space-occupying lesions; amniotic bands; chorangioma
; cardiac malformations; congenital diaphragmatic hernia; sacrococcygeal teratoma; and neural tube defect closure (3).
Monitoring is indicated in cases of fetal arrhythmia, nonimmune hydrops, placental chorangioma
, and aneurysm of Galen's vein.
Placentae were examined specifically for infarction, calcification, retroplacental hematoma and tumors like chorangioma
Chen et al (2) analyzed DNA from the fetus and different parts of the placenta from 2 cases of PMD and confirmed genetic identity among the chorangioma
, vesicle-like villi, and the fetus.