Prenatal and postnatal MRI findings of fetal pericallosal lipoma with normal corpus callosum: a case report / 中华围产医学杂志

ABSTRACT

We describe the prenatal diagnosis and postnatal follow-up of a fetus with a pericallosal lipoma diagnosed by MRI. The pregnant woman was admitted to Zhongnan Hospital of Wuhan University in February 2019. MRI examinations with multiple sequences and imaging methods were performed prenatally at 31 +6 and 38 +3 weeks of gestation, and at two days and three months postnatally. The MRI images showed that the corpus callosum was normal and the lesion was located around the corpus callosum, with high signal intensity on T1 weighted imaging, medium-to-high signal intensity on T2 weighted imaging, and low signal intensity on fat suppression sequence. No abnormal blood vessels were found on susceptibility-weighted imaging and time-of-flight magnetic resonance angiography sequences. Based on the prenatal and postnatal MRI findings, the tumor was clinically diagnosed as a pericallosal lipoma.