title: Color flow mapping and Doppler velocimetry in the diagnosis and management of a placental chorioangioma associated with nonimmune fetal hydrops.
abstract: BACKGROUND
  Placental chorioangiomas are the most common tumors of the placenta, occurring in 1% of all pregnancies. With the increasing use of ultrasound, prenatal recognition of these tumors is becoming more common.
  
  
  METHODS
  A 36-year-old woman presented at 28 weeks' gestation with an intrauterine mass suggested by color flow and Doppler studies to be a vascular tumor. Because of the association of these findings to nonimmune fetal hydrops, management included umbilical blood sampling and intravascular transfusion for fetal anemia. This intervention temporarily corrected the hydrops and significantly prolonged the pregnancy.
  
  
  CONCLUSIONS
  Color flow mapping and Doppler flow studies of intrauterine tumors associated with fetal nonimmune hydrops can be helpful in both diagnosis and management.
authors: Department of Obstetrics and Gynecology, University of Southern California School of Medicine, Los Angeles.
authors: G I
authors: GI
authors: Hirata
authors: D I
authors: DI
authors: Masaki
authors: M
authors: M
authors: O'Toole
authors: A L
authors: AL
authors: Medearis
authors: L D
authors: LD
authors: Platt
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity; D005260:Female; D006391:Hemangioma / Q000000981:diagnostic imaging*; D006801:Humans; D015160:Hydrops Fetalis / Q000209:etiology*; D010922:Placenta Diseases / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000000981:diagnostic imaging*; D014465:Ultrasonics; D016216:Ultrasonography, Prenatal