Physiological calcification of the septum pellucidum

1986 ◽  
Vol 28 (2) ◽  
pp. 173-173 ◽  
Author(s):  
H. Sakai ◽  
N. Nakamura
Keyword(s):  
Septum Pellucidum ◽  
Physiological Calcification

Neural and vascular architecture of the septum pellucidum: an anatomical study and considerations for safe endoscopic septum pellucidotomy

2020 ◽  
Vol 133 (3) ◽  
pp. 902-911
Author(s):  
Laszlo Barany ◽  
Cintia Meszaros ◽  
Oliver Ganslandt ◽  
Michael Buchfelder ◽  
Peter Kurucz
Keyword(s):  
Anatomical Study ◽  
Nerve Fibers ◽  
Septum Pellucidum ◽  
Cresyl Violet ◽  
Membranous Structure ◽  
Luxol Fast Blue ◽  
Fast Blue ◽  
Frontal Horn ◽  
Septal Nuclei ◽  
Fiber Dissection

OBJECTIVEThe septum pellucidum is a bilateral thin membranous structure representing the border between the frontal horns of the lateral ventricles. Its most examined components are the septal veins due to their surgical importance during endoscopic septum pellucidotomy (ESP), which is a well-accepted method for surgical treatment of unilateral hydrocephalus. It is widely accepted that the septum pellucidum contains nerve fibers as well, but interestingly, no anatomical study has been addressed to its neural components before. The aim of the present study was to identify these elements as well as their relations to the septal veins and to define major landmarks within the ventricular system for neurosurgical use.METHODSNine formalin-fixed human cadaveric brains (18 septa pellucida) were involved in this study. A central block containing both septa pellucida was removed and frozen at −30°C for 2 weeks in 7 cases. The fibers of the septum pellucidum and the adjacent areas including the venous elements were dissected under magnification by using homemade wooden spatulas and microsurgical instruments. In 2 cases a histological technique was used to validate the findings of the dissections. The blocks were sliced, embedded in paraffin, cut in 7-µm-thick slices, and then stained as follows: 1) with H & E, 2) with Luxol fast blue combined with cresyl violet, and 3) with Luxol fast blue combined with Sirius red.RESULTSThe septum pellucidum and the subjacent septum verum form the medial wall of the frontal horn of the lateral ventricle. Both structures contain nerve fibers that were organized in 3 groups: 1) the precommissural fibers of the fornix; 2) the inferior fascicle; and 3) the superior fascicle of the septum pellucidum. The area directly rostral to the postcommissural column of the fornix consisted of macroscopically identifiable gray matter corresponding to the septal nuclei. The histological examinations validated the findings of the authors’ fiber dissections.CONCLUSIONSThe nerve elements of the septum pellucidum as well as the subjacent septum verum were identified with fiber dissection and verified with histology for the first time. The septal nuclei located just anterior to the fornix and the precommissural fibers of the fornix should be preserved during ESP. Considering the venous anatomy as well as the neural architecture of the septum pellucidum, the fenestration should ideally be placed above the superior edge of the fornix and preferably dorsal to the interventricular foramen.

A case of prenatal diagnosis of corpus callosum lipoma

2020 ◽  
Author(s):  
A.I. Zamiatina, M.V. Medvedev
Keyword(s):  
Magnetic Resonance Imaging ◽  
Blood Flow ◽  
Prenatal Diagnosis ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Color Doppler ◽  
Septum Pellucidum ◽  
Resonance Imaging

A case of prenatal diagnosis of the corpus callosum lipoma at 32–33 weeks of gestation is presented. In a consultative examination, a hyperechoic formation with clear contours was found in the projection of the septum pellucidum, occupying the rostrum, genu, and truncus of corpus callosum, without signs of intratumorally blood flow in the color Doppler mapping mode. The prenatal diagnosis of "callosum lipoma" was established, confirmed after the birth of a child during magnetic resonance imaging.

New normal range of fetal cavum septum pellucidum in the second trimester of gestation

2020 ◽  
Author(s):  
M.V. Medvedev, O.I. Kozlova, À.Yu. Romanova
Keyword(s):  
Brain Development ◽  
Reference Range ◽  
Fetal Brain ◽  
Septum Pellucidum ◽  
Second Trimester ◽  
Normal Range ◽  
Cavum Septum Pellucidum ◽  
New Normal ◽  
Biparietal Diameter ◽  
Fetal Brain Development

Fetal brain was retrospectively evaluated in 418 normal fetuses at 16–28 weeks of gestation. The multiplanar mode to obtain the axial cerebral plane and measured the width of the cavum septum pellucidum (CSP) and biparietal diameter (BD). All measurements of CSP were done from as the widest diameter across both borders in an inter-to inter fashion. The CSP width is increasing at second trimester of gestation. Normal range plotted on the reference range (mean, 5th and 95th percentiles) of fetal width CSP by measuring of its size may be useful for assessment of fetal brain development in the second trimester of gestation.

scholarly journals EP08.17: The “isolated” wide cavum septum pellucidum: is this an ultrasound finding that should always be reported?

2019 ◽  
Vol 54 (S1) ◽  
pp. 281-281
Author(s):  
M.O. Thompson ◽  
O.B. Navti ◽  
S. Abdel‐Fattah ◽  
M. Alberry ◽  
C. Bryan ◽  
...  
Keyword(s):  
Septum Pellucidum ◽  
Ultrasound Finding ◽  
Cavum Septum Pellucidum

Increased prevalence of cavum septum pellucidum in schizophrenia

1993 ◽  
Vol 50 (3) ◽  
pp. 193-199 ◽  
Author(s):  
Lynn E. DeLisi ◽  
Anne L. Hoff ◽  
Maureen Kushner ◽  
Gustav Degreef
Keyword(s):  
Septum Pellucidum ◽  
Cavum Septum Pellucidum

scholarly journals Anterior Transcallosal Interforniceal Approach to the Third Ventricle via a Cavum Septum Pellucidum and Cavum Vergae

2021 ◽  
pp. 101338
Author(s):  
Keisuke Ohnaka ◽  
Toshiki Watanabe ◽  
Satoshi Kaneko ◽  
Takamaro Takei ◽  
Tomoaki Okada ◽  
...  
Keyword(s):  
Third Ventricle ◽  
Septum Pellucidum ◽  
Cavum Septum Pellucidum ◽  
The Third ◽  
Cavum Vergae

Cavum septum pellucidum in pediatric traumatic brain injury

2013 ◽  
Vol 213 (3) ◽  
pp. 186-192 ◽  
Author(s):  
Timothy Silk ◽  
Richard Beare ◽  
Louise Crossley ◽  
Kirrily Rogers ◽  
Louise Emsell ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Septum Pellucidum ◽  
Pediatric Traumatic Brain Injury ◽  
Cavum Septum Pellucidum

OP07.08: Absent septum pellucidum. Associated anomalies and clinical findings in 10 cases

2009 ◽  
Vol 34 (S1) ◽  
pp. 83-84
Author(s):  
M. Albig ◽  
A. Hagen ◽  
R. H. Becker ◽  
A. Gasiorek-Wiens ◽  
M. Entezami
Keyword(s):  
Clinical Findings ◽  
Septum Pellucidum ◽  
Associated Anomalies ◽  
Absent Septum Pellucidum
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