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Neonatal giant pial arteriovenous malformation: genesis or rapid enlargement in the third trimester
  1. C A Potter1,
  2. J Armstrong-Wells2,
  3. H J Fullerton2,
  4. W L Young3,
  5. R T Higashida1,
  6. C F Dowd1,
  7. V V Halbach1,
  8. S W Hetts1
  1. 1Department of Radiology and Biomedical Imaging, UCSF Medical Center, San Francisco, California, USA
  2. 2Department of Neurology, UCSF Medical Center, San Francisco, California, USA
  3. 3Department of Anesthesia and Perioperative Care, UCSF Medical Center, San Francisco, California, USA
  1. Correspondence to Dr S W Hetts, Department of Radiology, UCSF, 515 Parnassus Avenue, L-352, San Francisco, CA 94143-0628, USA; steven.hetts{at}


A neonate with congestive heart failure at birth due to a nearly holohemispheric pial arteriovenous malformation is described. This occurred despite a normal second trimester prenatal sonogram. Successful treatment of heart failure was achieved by embolization alone. This case demonstrates that hemodynamically significant lesions may arise later or enlarge more rapidly in utero than previously thought.

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  • Competing interests None.

  • Ethics approval This study was conducted with the approval of the hospital ethics committee.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.