Maternal exposure to methylmercury causes an impairment in ependymal cilia motility in the third ventricle and dilation of lateral ventricles in mice offspring

2020 ◽  
Vol 112 (16) ◽  
pp. 1253-1259
Author(s):  
Teruki Hagiwara ◽  
Hajime Hagino ◽  
Kaho Ueda ◽  
Mina Nakama ◽  
Takeshi Minami
Keyword(s):  
Third Ventricle ◽  
Maternal Exposure ◽  
The Third ◽  
Lateral Ventricles ◽  
Ependymal Cilia

Critical surgical anatomy of the ventricular system

2010 ◽  
pp. 674-680
Author(s):  
George Samandouras
Keyword(s):  
Fourth Ventricle ◽  
Third Ventricle ◽  
Surgical Anatomy ◽  
Ventricular System ◽  
The Third ◽  
Lateral Ventricles ◽  
System P

Chapter 12.1 covers critical surgical anatomy of the ventricular system, including brief surgical embryology, brief clinical histology, the lateral ventricles, the third ventricle, the fourth ventricle, and major cisterns.

scholarly journals III. Contributions to the anatomy of the central nervous system in vertebrated animals. Part I.—Ichthyopsida. Section I.—Pisces. Subsection III.—Dipnoi. On the brain of the Ceratodus forsteri

1888 ◽  
Vol 43 (258-265) ◽  
pp. 420-423
Keyword(s):  
Fourth Ventricle ◽  
Third Ventricle ◽  
Pia Mater ◽  
The Third ◽  
Lateral Ventricles ◽  
Large Size ◽  
General Arrangement ◽  
Tela Choroidea ◽  
The Central Nervous System ◽  
The Brain

The brain of Ceratodus has the following general arrangement:—The membrane which represents the pia mater is of great thickness and toughness; there are two regions where a tela choroidea is developed: one where it covers in the fourth ventricle, and the other where it penetrates through the third ventricle and separates the lateral ventricles from each other. The ventricles are all of large size, and the walls of the lateral ventricles are not completed by nervous tissue. The thalamence-phalon and the mesencephalon are narrow, and the medulla oblongata is wide.

Intraventricular meningiomas: a clinicopathological study and review of the literature

2006 ◽  
Vol 20 (3) ◽  
pp. 1-6 ◽  
Author(s):  
Harjinder S. Bhatoe ◽  
Prakash Singh ◽  
Vibha Dutta
Keyword(s):  
Fourth Ventricle ◽  
Third Ventricle ◽  
Neurofibromatosis Type ◽  
Histopathological Features ◽  
The Third ◽  
Lateral Ventricles ◽  
Suboccipital Craniectomy ◽  
Eloquent Cortex ◽  
Slow Growing

Object Intraventricular meningiomas are rare tumors. The origin of these tumors can be traced to embryological invagination of arachnoid cells into the choroid plexus. The authors analyzed data that they had collected to study the clinicopathological aspects and review the origin, presentation, imaging, and management of these tumors. Methods In this retrospective analysis, the authors describe the cases of 12 patients who had received a diagnosis of intraventricular meningioma and underwent surgery for the tumors. Nine of these patients were men and three were women. Features of neurofibromatosis Type 2 were present in two of the women. Nine of the tumors were located in the lateral ventricles, one was in the third ventricle, and two were in the fourth ventricle. Raised intracranial pressure (ICP) was the universal presentation in all the patients, and the preoperative diagnoses were confirmed on neuroimaging studies. Excision was performed using the parietooccipital (trigonal) approach for lateral ventricle tumors, the transcortical–transventricular route for the third ventricle tumor, and suboccipital craniectomy for fourth ventricle tumors. Postoperatively, one patient died and the others experienced resolution of their symptoms. Histopathological features of these tumors were similar to those seen in meningiomas in other locations. Conclusions Intraventricular meningiomas are slow-growing tumors that become large prior to detection. Although they are commonly seen in the lateral ventricles, they occur in the third and fourth ventricles as well. Presentation is in the form of raised ICP with no localizing features; therefore the diagnosis is based on imaging studies. Hydrocephalus occurs due to obstruction of cerebrospinal fluid pathways. Excision requires planning to avoid eloquent cortex incision. The histopathological features are varied, although most of the tumors in the study were angiomatous meningiomas. These tumors are no different histologically from tumors that are dural in origin. No recurrence has been reported.

Xanthogranulomas of the Third Ventricle

Neurosurgery ◽  
1979 ◽  
Vol 4 (4) ◽  
pp. 329-333 ◽  
Author(s):  
Jeffery L. Rush ◽  
John A. Kusske ◽  
Robert W. Porter ◽  
Henry W. Pribram
Keyword(s):  
Differential Diagnosis ◽  
Intracranial Pressure ◽  
Computerized Tomography ◽  
Third Ventricle ◽  
Increased Intracranial Pressure ◽  
The Third ◽  
Lateral Ventricles ◽  
Rare Tumors ◽  
3Rd Ventricle

Abstract Two patients with xanthogranuloma of the 3rd ventricle are described. In each instance the tumor obstructed the interventricular foramina and caused dilatation of the lateral ventricles and signs of increased intracranial pressure; computerized tomography demonstrated the dense, nonenhancing lesion in the anterior 3rd ventricle. The pathogenesis of these rare tumors is discussed. These cases affirm the need to consider xanthogranuloma in the differential diagnosis of anterior 3rd ventricle tumors in adults.

scholarly journals Unusual presentation of xanthogranuloma of the choroid plexus

2010 ◽  
Vol 01 (02) ◽  
pp. 097-098 ◽  
Author(s):  
Jayaprakash Shetty ◽  
KV Devadiga ◽  
Muktha Pai ◽  
Keyword(s):  
Choroid Plexus ◽  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Unusual Presentation ◽  
Benign Tumors ◽  
The Third ◽  
Lateral Ventricles ◽  
Exact Etiology

ABSTRACTIntracranial xanthogranulomas are rare benign tumors and occur most commonly as choroid plexus xanthogranulomas, which rarely become symptomatic. Exact etiology is still a matter of debate. We present a case of xanthogranuloma of the choroid plexus of the third ventricle, causing obstructive hydrocephalus of the lateral ventricles.

scholarly journals Surgical approaches to the third ventricle of the brain in children

2021 ◽  
Vol 11 (1) ◽  
pp. 47-54
Author(s):  
Sergey K. Gorelyshev ◽  
Olga A. Medvedeva
Keyword(s):  
Third Ventricle ◽  
Pineal Region ◽  
Anterior Horn ◽  
Surgical Approaches ◽  
Surgical Interventions ◽  
Transcallosal Approach ◽  
Advantages And Disadvantages ◽  
The Third ◽  
Lateral Ventricles ◽  
The Brain

AIM: This study aimed to describe and analyze the advantages and disadvantages of various surgical approaches to neoplasms of the third ventricle of the brain in children. MATERIALS AND METHODS: This study analyzed surgical interventions to the third ventricle in 657 patients, performed at the Academician N.N. Burdenko of the Research Institute of Neurosurgery from 1998 to 2018. These included 375 patients with intra-extraventricular craniopharyngiomas and 282 patients with gliomas of the third ventricle and chiasm. The patients age ranged from 3 mon to 18 years old. RESULTS: The anterior transcallosal approach provides access to the anterior horn and bodies of the lateral ventricles, as well as the third ventricle. The transfornical approach provides more opportunities for access to both the anterior and posterior parts of the third ventricle; however, it has a high risk of trauma to the fornix. The subchoroidal approach provides a very good view of the posterior parts of the third ventricle, especially of the pineal region; however, it has even greater restrictions on viewing its anterior parts. When compared with the transcallosal approach, the transfrontal approach can be used more safely in the absence of hydrocephalus (if the tumor is located in the anterior horn). No specific complications were inherent in a particular approach (seizures were registered in 1%, transient hemiparesis was noted in 10%, and transient memory impairments were revealed in 5% of cases). CONCLUSION: The use of a transcallosal approach is safe even in infants. The transcortical approach is recommended mainly for large tumors of the lateral ventricles, and the transcallosal approach should be used for small tumors of the third ventricle. No specific complications were inherent in a particular approach, and the choice was determined by the assessment of the exact location of the tumor and calculation of the most relevant trajectory for its achievement as well as the aim (biopsy or radical removal). Analysis of magnetic resonance imaging and neuronavigation are significant in the selection of surgical approaches.

Computational Modeling of the Mechanical Behavior of the Cerebrospinal Fluid System

2004 ◽  
Vol 127 (2) ◽  
pp. 264-269 ◽  
Author(s):  
Vartan Kurtcuoglu ◽  
Dimos Poulikakos ◽  
Yiannis Ventikos
Keyword(s):  
Cerebrospinal Fluid ◽  
Phase Shift ◽  
Third Ventricle ◽  
Pressure Amplitude ◽  
Fluid System ◽  
Aqueduct Stenosis ◽  
The Third ◽  
Lateral Ventricles ◽  
Sinusoidal Motion ◽  
Pressure Propagation

A computational fluid dynamics (CFD) model of the cerebrospinal fluid system was constructed based on a simplified geometry of the brain ventricles and their connecting pathways. The flow is driven by a prescribed sinusoidal motion of the third ventricle lateral walls, with all other boundaries being rigid. The pressure propagation between the third and lateral ventricles was examined and compared to data obtained from a similar geometry with a stenosed aqueduct. It could be shown that the pressure amplitude in the lateral ventricles increases in the presence of aqueduct stenosis. No difference in phase shift between the motion of the third ventricle walls and the pressure in the lateral ventricles because of the aqueduct stenosis could be observed. It is deduced that CFD can be used to analyze the pressure propagation and its phase shift relative to the ventricle wall motion. It is further deduced that only models that take into account the coupling between ventricles, which feature a representation of the original geometry that is as accurate as possible and which represent the ventricle boundary motion realistically, should be used to make quantitative statements on flow and pressure in the ventricular space.

SrGAP3 knockout mice display enlarged lateral ventricles and specific cilia disturbances of ependymal cells in the third ventricle

2015 ◽  
Vol 361 (2) ◽  
pp. 645-650 ◽  
Author(s):  
Leif Koschützke ◽  
Jonathan Bertram ◽  
Bianca Hartmann ◽  
Dusan Bartsch ◽  
Martin Lotze ◽  
...  
Keyword(s):  
Knockout Mice ◽  
Third Ventricle ◽  
Ependymal Cells ◽  
The Third ◽  
Lateral Ventricles

Microsurgical Anatomy and Operative Approaches to the Lateral Ventricles

Neurosurgery ◽  
1986 ◽  
Vol 19 (5) ◽  
pp. 685-723 ◽  
Author(s):  
Timurkaynak Erdener ◽  
L. Rhoton Albert ◽  
Barry Margaret
Keyword(s):  
Lateral Ventricle ◽  
Third Ventricle ◽  
Cerebral Hemispheres ◽  
Microsurgical Anatomy ◽  
The Third ◽  
Lateral Ventricles ◽  
Relationship Of ◽  
The Relationship ◽  
Basal Cisterns

Abstract The anatomy needed to plan microoperative approaches to the lateral ventricles was examined in 20 cadaveric cerebral hemispheres. The neural, arterial, and venous structures in the walls of the lateral ventricles and the relationship of the lateral ventricles to the third ventricle and basal cisterns were examined. The operative approaches to the lateral ventricle are reviewed.

Endoscopic management of cysticercal cysts within the lateral and third ventricles

2000 ◽  
Vol 92 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Marvin Bergsneider ◽  
Langston T. Holly ◽  
Jae Hong Lee ◽  
Wesley A. King ◽  
John G. Frazee
Keyword(s):  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Endoscopic Approach ◽  
Endoscopic Management ◽  
Third Ventriculostomy ◽  
General Description ◽  
Content Type ◽  
The Third ◽  
Lateral Ventricles ◽  
Fine Print

Object. In this report the authors review their 3-year experience with the endoscopic management of patients with hydrocephalus who harbored cysticercal cysts within the third and lateral ventricles. The management plan was to utilize an endoscopic approach to remove the cysts and to incorporate techniques useful in treating obstructive hydrocephalus. The ultimate goals were to avoid having to place a complication-prone cerebrospinal fluid shunt and to eliminate the risk of complications related to cyst degeneration.Methods. A retrospective analysis of 10 patients with hydrocephalus and cysticercal cysts within the third or lateral ventricles who were endoscopically managed was performed. A general description of the instrumentation and technique used for removal of the intraventricular cysts is given. At presentation, neuroimaging revealed findings suggestive of obstructive hydrocephalus in eight patients.Seven of the 10 patients treated endoscopically were spared the necessity of shunt placement. Three successful third ventriculostomies and one therapeutic septum pellucidotomy were performed. Despite frequent rupture of the cyst walls during removal of the cysts, there were no cases of ventriculitis. The endoscopic approach allowed successful removal of a cyst situated in the roof of the anterior third ventricle. One patient suffered from recurrent shunt obstructions secondary to a shunt-induced migration of cysts from the posterior fossa to the lateral ventricles.Conclusions. The endoscopic removal of third and lateral ventricle cysticercal cysts, combined with a third ventriculostomy or septum pellucidotomy in selected cases, is an effective treatment in patients with hydrocephalus and should be considered the primary treatment for this condition.

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