Variability of T1-weighted signal intensity of pericallosal lipomas in the fetus

Variability of T1-weighted signal intensity of pericallosal lipomas in the fetus Background Pericallosal lipomas are often associated with pericallosal lipomas (seven curvilinear and four tubulonodular) corpus callosum dysgenesis. The diagnosis of lipoma, sug- were included. All MRI scans were performed in the third gested on ultrasonography, relies on the classic T1 trimester. Curvilinear lipomas were thinner and six cases were hyperintensity on magnetic resonance imaging (MRI). associated with prenatal T1 iso-intensity. Typical T1 However, this feature may be absent prenatally. hyperintensity appeared on postnatal MRI only. All Objective Our objective was to study the changes of T1 in- tubulonodular lipomas were much larger and showed prenatal tensity in fetal lipomas with comparison to postnatal/ T1 hyperintensity. In two patients, the lipoma increased in size postmortem data and to assess the factors influencing the sig- on postnatal MRI. nal variations of pericallosal lipomas on prenatal MRI. Conclusion The type and size of a lipoma influence T1 pre- Materials and methods Patients with callosum dysgenesis natal intensity. Absence of T1 intensity was observed in cur- and interhemispheric hyperechogenicity suggestive of a vilinear lipomas only. Curvilinear lipomas are much thinner. pericallosal lipoma with available postnatal or postmortem Changes in T1 intensity may also be related to fat maturation data were included. Gestational age, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pediatric Radiology Springer Journals

Variability of T1-weighted signal intensity of pericallosal lipomas in the fetus

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Medicine & Public Health; Imaging / Radiology; Pediatrics; Neuroradiology; Nuclear Medicine; Ultrasound; Oncology
ISSN
0301-0449
eISSN
1432-1998
D.O.I.
10.1007/s00247-017-4028-1
Publisher site
See Article on Publisher Site

Abstract

Background Pericallosal lipomas are often associated with pericallosal lipomas (seven curvilinear and four tubulonodular) corpus callosum dysgenesis. The diagnosis of lipoma, sug- were included. All MRI scans were performed in the third gested on ultrasonography, relies on the classic T1 trimester. Curvilinear lipomas were thinner and six cases were hyperintensity on magnetic resonance imaging (MRI). associated with prenatal T1 iso-intensity. Typical T1 However, this feature may be absent prenatally. hyperintensity appeared on postnatal MRI only. All Objective Our objective was to study the changes of T1 in- tubulonodular lipomas were much larger and showed prenatal tensity in fetal lipomas with comparison to postnatal/ T1 hyperintensity. In two patients, the lipoma increased in size postmortem data and to assess the factors influencing the sig- on postnatal MRI. nal variations of pericallosal lipomas on prenatal MRI. Conclusion The type and size of a lipoma influence T1 pre- Materials and methods Patients with callosum dysgenesis natal intensity. Absence of T1 intensity was observed in cur- and interhemispheric hyperechogenicity suggestive of a vilinear lipomas only. Curvilinear lipomas are much thinner. pericallosal lipoma with available postnatal or postmortem Changes in T1 intensity may also be related to fat maturation data were included. Gestational age,

Journal

Pediatric RadiologySpringer Journals

Published: Nov 28, 2017

References

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