Chorangioma Placentae: A Rare Entity

Background: A chorangioma, a nontrophoblastic tumor, is a primary benign neoplasm of the placenta. It is found on the fetal surface of the placenta or in the placental parenchyma. Chorangiomas can have various histopathologic presentations, ranging from vascular to cellular, and can undergo degenerative changes. They can be diagnosed prenatally with ultrasound, color Doppler imaging, and magnetic resonance imaging. Case: A large placental chorangioma with secondary changes was found in a 32-year-old primigravida female who was referred to the Postgraduate Institute ofMedical Sciences, in Rohtak, Haryana, India, at 36 weeks of gestation, with polyhydramnios and intrauterine growth restriction. Results: The patient herself delivered a placenta and deceased fetus without surgical intervention. The patient responded well after treatment. Conclusions: Chorangioma must be differentiated from other villous capillary lesions, namely, chorangiomatosis and chorangiosis. Most chorangiomas are small and possess no clinical significance. On the contrary, clinically significant chorangiomas, greater than 5cm or multiple, may be associated with pregnancy complications.