S-Space College of Medicine/School of Medicine (의과대학/대학원) Pathology (병리학전공) Journal Papers (저널논문_병리학전공)
Absence of the Septum Pellucidum Associated with a Midline Fornical Nodule and Ventriculomegaly: A Report of Two Cases
- Chun, Yi Kyeong; Kim, Hye Sun; Hong, Sung Ran; Chi, Je G.
- Issue Date
- KOREAN ACAD MEDICAL SCIENCES
- JOURNAL OF KOREAN MEDICAL SCIENCE; Vol.25 6; 970-973
- We report two autopsy cases that revealed the partial absence of the septum pellucidum with ventriculomegaly. In each case, the brain showed mild dilatation of both frontal horns of the lateral ventricles, normal third and fourth ventricles and no aqueductal stenosis. The posterior portion of the septum pellucidum was absent and the fornices were fused in a single midline nodule, abnormally displaced to a caudal position and lodged in the foramina of Monro. The brain base showed no apparent abnormalities; the optic nerves were well developed. We conclude that the caudally displaced fornix in the absence of the septum pellucidum may have intermittently obstructed the foramina of Monro and induced mild ventriculomegaly.