Premium
Prenatal demonstration of afferent vessels and progressive thrombosis in a torcular malformation
Author(s) -
Grangé G.,
LeTohic A.,
Merzoug V.,
Adamsbaum C.
Publication year - 2007
Publication title -
prenatal diagnosis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.956
H-Index - 97
eISSN - 1097-0223
pISSN - 0197-3851
DOI - 10.1002/pd.1744
Subject(s) - medicine , arteriovenous malformation , magnetic resonance imaging , thrombus , vascular malformation , radiology , thrombosis , superior sagittal sinus , prenatal diagnosis , surgery , fetus , pregnancy , genetics , biology
Objectives To elucidate a part of the prenatal natural history of dural sinus malformation of the posterior fossa. Methods Ultrasound and magnetic resonance imaging were performed from 31 to 32 weeks' gestation. Results We observed the progressive development of a thrombus that was visible as an expanding hyperechoic round area within a cystic mass of the posterior fossa. It was characterized, as expected for a vascular malformation, by the presence of blood flow into the aneurismal cavity. Color doppler identified superior sagittal and straight sinuses, and distinguished that their flow continued into the dilated torcular. Prenatal magnetic resonance imaging confirmed an arteriovenous malformation involving the dural sinus. Conclusion The vascular malformation had a fixed volume and preceded the thrombosis, which formed within several days. The present case is the first report with all the prenatal sonographic features of this condition. Copyright © 2007 John Wiley & Sons, Ltd.