title: Pregnancy outcomes and ultrasonographic diagnosis in patients with histologically-proven placental chorioangioma.
abstract: OBJECTIVE
  To evaluate pregnancy outcome and ultrasound diagnosis in patients with histologically-confirmed placental chorioangioma.
  
  
  METHODS
  Placentas with histological diagnosis of chorioangioma were identified and medical charts were reviewed for findings of ultrasound examinations. Pregnancy outcomes were compared with all singleton deliveries without chorioangioma in the same time period.
  
  
  METHODS
  Primary outcome was Neonatal Intensive Care Unit admission rate. Secondary outcome was ultrasound detection rate of chorioangioma.
  
  
  RESULTS
  Among 14,725 singleton deliveries, 23 placentas were diagnosed with chorioangioma (0.16%). The control group included all singleton deliveries without chorioangioma (n = 14702). Neonates in the study group were more likely to be admitted to the Neonatal Intensive Care Unit (OR = 4.45) and to have smaller birth weight (p = 0.006). Only 2 of 7 larger chorioangiomas (≥ 2 cm) with available ultrasound reports were identified by ultrasound (29% detection rate). All cases demonstrated normal fetal growth and wellbeing.
  
  
  CONCLUSIONS
  Chorioangiomas are not always identified by routine prenatal sonography. Even in the absence of ultrasonic abnormalities, neonatal morbidity, as measured by NICU admission rate, is increased.
authors: Department of Obstetrics and Gynaecology, McGill University Health Center, 687 Pine Ave. West, Montreal, QC H3A 1A1, Canada.
authors: K
authors: K
authors: Wou
authors: Department of Pathology, McGill University Health Center, 687 Pine Ave. West, Montreal, QC H3A 1A1, Canada.
authors: M F
authors: MF
authors: Chen
authors: Department of Obstetrics and Gynaecology, McGill University Health Center, 687 Pine Ave. West, Montreal, QC H3A 1A1, Canada.
authors: A
authors: A
authors: Mallozzi
authors: Department of Obstetrics and Gynaecology, McGill University Health Center, 687 Pine Ave. West, Montreal, QC H3A 1A1, Canada.
authors: R N
authors: RN
authors: Brown
authors: Department of Obstetrics and Gynaecology, McGill University Health Center, 687 Pine Ave. West, Montreal, QC H3A 1A1, Canada. Electronic address: alon.shrim@gmail.com.
authors: A
authors: A
authors: Shrim
mesh_terms: D000328:Adult; D001724:Birth Weight; D005260:Female; D006391:Hemangioma / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007363:Intensive Care Units, Neonatal; D010920:Placenta / Q000000981:diagnostic imaging; D010922:Placenta Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000473:pathology; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000000981:diagnostic imaging* / Q000473:pathology; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D016216:Ultrasonography, Prenatal