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Fetal pericallosal lipoma: US and MR findings.

Kim TH, Joh JH, Kim MY, Kim YM, Han KS - Korean J Radiol (2002 Apr-Jun)

Bottom Line: We report a case of fetal pericallosal lipoma occurring at the anterior interhemispheric fissure and associated with agenesis of the corpus callosum.During targeted prenatal ultrasonography at 26 weeks' gestation, the lesion was seen as a highly echogenic mass.MR imaging performed at 35 weeks' gestation and during the postnatal period revealed a pericallosal fatty mass and agenesis of the corpus callosum.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Sejong Heart Institute, Sejong General Hospital, Pucheon, Kyunggido, Korea. fetalus@naver.com

ABSTRACT
We report a case of fetal pericallosal lipoma occurring at the anterior interhemispheric fissure and associated with agenesis of the corpus callosum. During targeted prenatal ultrasonography at 26 weeks' gestation, the lesion was seen as a highly echogenic mass. MR imaging performed at 35 weeks' gestation and during the postnatal period revealed a pericallosal fatty mass and agenesis of the corpus callosum.

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Tubulonodular-type pericallosal lipoma, as seen at postnatal follow-up imaging.A. Sagittal neurosonogram at the second day shows a hyperechoic midline mass (M), with scattered echogenic spots (arrowheads) in the cingulate sulcus.B. T1-weighted sagittal MR image demonstrates a high-intensity bulky mass in the midline of the anterior callosal area (arrow), with scattered fat globules in the cingulate sulcus (arrowheads). The corpus callosum is invisible. The cerebral gyri extend in a radial pattern from the lateral ventricles, without the normal curve of the cingulate gyrus.
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Figure 2: Tubulonodular-type pericallosal lipoma, as seen at postnatal follow-up imaging.A. Sagittal neurosonogram at the second day shows a hyperechoic midline mass (M), with scattered echogenic spots (arrowheads) in the cingulate sulcus.B. T1-weighted sagittal MR image demonstrates a high-intensity bulky mass in the midline of the anterior callosal area (arrow), with scattered fat globules in the cingulate sulcus (arrowheads). The corpus callosum is invisible. The cerebral gyri extend in a radial pattern from the lateral ventricles, without the normal curve of the cingulate gyrus.

Mentions: The findings of a post-delivery neonatal neurological examination were normal, but sagittal neurosonography revealed the presence of a midline echogenic mass with scattered echogenic spots in the cingulate sulcus (Fig. 2A). A sagittal T1-weighted MR image depicted a high-signal-intensity bulky mass in the midline of the anterior pericallosal area (Fig. 2B). Fat globules were scattered along the cingulate sulcus, and agenesis of the corpus callosum was also noted. The cerebral gyri extended in a radial pattern from the lateral ventricles without the normal curve of the cingulate gyrus. The neonate was discharged at 4 days of age.


Fetal pericallosal lipoma: US and MR findings.

Kim TH, Joh JH, Kim MY, Kim YM, Han KS - Korean J Radiol (2002 Apr-Jun)

Tubulonodular-type pericallosal lipoma, as seen at postnatal follow-up imaging.A. Sagittal neurosonogram at the second day shows a hyperechoic midline mass (M), with scattered echogenic spots (arrowheads) in the cingulate sulcus.B. T1-weighted sagittal MR image demonstrates a high-intensity bulky mass in the midline of the anterior callosal area (arrow), with scattered fat globules in the cingulate sulcus (arrowheads). The corpus callosum is invisible. The cerebral gyri extend in a radial pattern from the lateral ventricles, without the normal curve of the cingulate gyrus.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2713839&req=5

Figure 2: Tubulonodular-type pericallosal lipoma, as seen at postnatal follow-up imaging.A. Sagittal neurosonogram at the second day shows a hyperechoic midline mass (M), with scattered echogenic spots (arrowheads) in the cingulate sulcus.B. T1-weighted sagittal MR image demonstrates a high-intensity bulky mass in the midline of the anterior callosal area (arrow), with scattered fat globules in the cingulate sulcus (arrowheads). The corpus callosum is invisible. The cerebral gyri extend in a radial pattern from the lateral ventricles, without the normal curve of the cingulate gyrus.
Mentions: The findings of a post-delivery neonatal neurological examination were normal, but sagittal neurosonography revealed the presence of a midline echogenic mass with scattered echogenic spots in the cingulate sulcus (Fig. 2A). A sagittal T1-weighted MR image depicted a high-signal-intensity bulky mass in the midline of the anterior pericallosal area (Fig. 2B). Fat globules were scattered along the cingulate sulcus, and agenesis of the corpus callosum was also noted. The cerebral gyri extended in a radial pattern from the lateral ventricles without the normal curve of the cingulate gyrus. The neonate was discharged at 4 days of age.

Bottom Line: We report a case of fetal pericallosal lipoma occurring at the anterior interhemispheric fissure and associated with agenesis of the corpus callosum.During targeted prenatal ultrasonography at 26 weeks' gestation, the lesion was seen as a highly echogenic mass.MR imaging performed at 35 weeks' gestation and during the postnatal period revealed a pericallosal fatty mass and agenesis of the corpus callosum.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Sejong Heart Institute, Sejong General Hospital, Pucheon, Kyunggido, Korea. fetalus@naver.com

ABSTRACT
We report a case of fetal pericallosal lipoma occurring at the anterior interhemispheric fissure and associated with agenesis of the corpus callosum. During targeted prenatal ultrasonography at 26 weeks' gestation, the lesion was seen as a highly echogenic mass. MR imaging performed at 35 weeks' gestation and during the postnatal period revealed a pericallosal fatty mass and agenesis of the corpus callosum.

Show MeSH
Related in: MedlinePlus