title: Use of foetal MRI in diagnosing hepatic hemangioendotheliomas: a report of four cases.
abstract: OBJECTIVE
  To examine the appearance of foetal hepatic hemangioendotheliomas using prenatal magnetic resonance imaging (MRI) and to conclude whether MRI provides additional information to that obtained with ultrasonography (US).
  
  
  METHODS
  Four foetuses with hepatic hemangioendotheliomas were evaluated by US and MRI between 2005 and 2008. MRI was performed on four foetuses at 33+4, 37+4, 24 and 21+6 weeks gestation following US evaluations that demonstrated foetal abdominal tumours. The prenatal US and MRI findings were compared with the postnatal physical examination, enhancement computed tomography (CT) and serial ultrasound examinations, or with the pathology exams, retrospectively.
  
  
  RESULTS
  All four foetuses showed very similar prenatal MRI findings. In each case, the foetal MRI detected an isolated vascular hepatic tumour with low T1 and inhomogeneous high T2 signal intensity. In one case, multiple scalp hemangiomas were detected in the postnatal physical examination, but not with the prenatal US and MRI exams. In the other three cases, the prenatal US and MRI findings were in complete agreement with the postnatal diagnoses.
  
  
  CONCLUSIONS
  Prenatal MRI is effective in the assessment of foetal hepatic hemangioendotheliomas. Prenatal MRI may provide a useful adjunct to US in assessing foetal hepatic tumours.
authors.affiliation: Department of Radiology, Shanghai Children's Medical Center, 1678 Dongfang Rd., Shanghai 200127, China. dongsuzhen@126.com
authors.forename: Su-Zhen
authors.initials: SZ
authors.lastname: Dong
authors.forename: Ming
authors.initials: M
authors.lastname: Zhu
authors.forename: Yu-Min
authors.initials: YM
authors.lastname: Zhong
authors.forename: Min-Zhi
authors.initials: MZ
authors.lastname: Yin
mesh_terms: D005260:Female; D006390:Hemangioendothelioma / Q000175:diagnosis*; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D011296:Prenatal Diagnosis / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity