scholarly journals 'Trapped temporal horn' of lateral ventricle in tuberculous meningitis

2014 ◽  
Vol 2014 (apr03 2) ◽  
pp. bcr2014203837-bcr2014203837 ◽  
Author(s):  
C. Sharma ◽  
M. Acharya ◽  
B. L. Kumawat ◽  
A. Kochar
Keyword(s):  
Tuberculous Meningitis ◽  
Lateral Ventricle ◽  
Temporal Horn

The Trapped Temporal Horn

Neurosurgery ◽  
1979 ◽  
Vol 5 (2) ◽  
pp. 245-249 ◽  
Author(s):  
Harold Smith ◽  
Dixon Moody ◽  
Marshall Ball ◽  
Wayne Laster ◽  
David L. Kelly ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Right Ventricle ◽  
Brain Stem ◽  
Lateral Ventricle ◽  
Ventricular Wall ◽  
X Ray ◽  
Temporal Horn ◽  
Grade Ii ◽  
Computerized Cranial Tomography ◽  
The Right

Abstract Although the advent of computerized cranial tomography (CT) has decreased the number of pneumoencephalograms performed for the diagnosis of hydrocephalus and lesions of the posterior fossa, brain stem, and ventricles, there are some patients in whom pneumoencephalography should still be done because it adds valuable information to that obtained with CT. When the temporal horn becomes obstructed, the choroid plexus and ependymal surface “upstream” from the obstructing mass continue to produce cerebrospinal fluid (CSF). The temporal horn can thus enlarge enough to appear as a mass on CT because of its reduced x-ray attenuation coefficient. Pneumoencephalography is effective in this situation because air will flow past a mass that obstructs CSF and because the ventricular system dilates during pneumoencephalography. When pneumoencephalography is used in a patient with a trapped temporal horn, the partially trapped horn may enlarge approximately 24 hours later. With that precaution in mind, the neurosurgeon should find pneumoencephalography to be a useful adjunct to CT in delineating the cause of a trapped temporal horn. In the three patients reported here CT had indicated a unilateral trapped temporal horn; pneumoencephalography confirmed that finding and demonstrated both the location and the nature of the lesion. One patient had a Grade II astrocytoma fungating into the atrium of the right lateral ventricle, one had a mass extending into the right ventricle from the medial and superior ventricular wall with nodular encroachment on the ventricle, and one had a meningioma in the atrium of the right lateral ventricle.

New endoscopic route to the temporal horn of the lateral ventricle: surgical simulation and morphometric assessment

2014 ◽  
Vol 121 (3) ◽  
pp. 751-759 ◽  
Author(s):  
Jose Juan González Sánchez ◽  
Jordina Rincon-Torroella ◽  
Alberto Prats-Galino ◽  
Matteo de Notaris ◽  
Joan Berenguer ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Temporal Lobe ◽  
Lateral Ventricle ◽  
Surgical Simulation ◽  
Complex Structure ◽  
Entry Point ◽  
Temporal Lobectomy ◽  
Temporal Horn ◽  
Cranial Mri ◽  
The Mean

Object The temporal horn of the lateral ventricle is a complex structure affected by specific pathological conditions. Current approaches to the temporal horn involve a certain amount of corticotomy and white matter disruption. Surgeons therefore set aside anterior temporal lobectomy as a last resource and avoid it in the dominant hemisphere. The authors propose a minimally invasive endoscopic intraventricular approach to the temporal horn and describe a standardized analysis and technical assessment of the feasibility of this approach. Methods To determine the best trajectory, angulation, and entry point to the temporal horn of the lateral ventricle, the authors evaluated 50 cranial MRI studies (100 temporal lobes) from healthy patients. They studied and systematized the neurosurgical endoscopic anatomy. They also simulated the proposed approach in 9 cadaveric specimens (18 approaches). Results Mean scalp entry point coordinates (± SD) were 2.7 ± 0.28 cm lateral to the inion and 5.6 ± 0.41 cm superior to the inion. The mean total distance from the uncal recess to the scalp (± SD) was 10.64 ± 0.6 cm. The mean total intraparenchymal distance crossed by the endoscope was 3.76 ± 0.36 cm. The approach was successfully completed in all studied specimens. Conclusions In this study, the endoscopic intraventricular approach to the temporal horn is standardized. The morphometric analysis makes this approach anatomically feasible and replicable. This approach provides minimally invasive endoscopic access to the uncal recess, amygdala, hippocampus, fornix, and paraventricular temporal lobe structures. The following essential strategies enabled access to and maneuverability inside the temporal horn: tailored preoperative planning of the trajectory and use of anatomical and radiological references, constant irrigation, and an angled endoscopic lens. Safety assessment and novel instruments and techniques may be proposed to advance this very promising route to pathological changes in the temporal lobe.

Paradoxical Pupillary Dilation in a Case of Entrapped Temporal Horn of Lateral Ventricle with Evidence of Uncal Herniation on Imaging

2019 ◽  
Vol 124 ◽  
pp. 489-490
Author(s):  
Amit Agrawal ◽  
Luis Rafael Moscote-Salazar ◽  
Padilla-Zambrano Huber Said ◽  
Venkatesh Manchikanti ◽  
V.A. Kiran Kumar ◽  
...  
Keyword(s):  
Lateral Ventricle ◽  
Pupillary Dilation ◽  
Temporal Horn

Cerebral calculi in the temporal horn of the lateral ventricle: report of an unusual case

2007 ◽  
Vol 50 (6) ◽  
pp. 817-818 ◽  
Author(s):  
N Ghosal ◽  
D Thakre ◽  
G Murthy ◽  
A S Hegde
Keyword(s):  
Lateral Ventricle ◽  
Unusual Case ◽  
Temporal Horn

Handedness, language lateralisation and anatomical asymmetry in schizophrenia

2001 ◽  
Vol 178 (4) ◽  
pp. 344-351 ◽  
Author(s):  
Iris Sommer ◽  
André Aleman ◽  
Nick Ramsey ◽  
Anke Bouma ◽  
René Kahn
Keyword(s):  
Strong Evidence ◽  
Lateral Ventricle ◽  
Dichotic Listening ◽  
Planum Temporale ◽  
Healthy Controls ◽  
Left Handedness ◽  
Temporal Horn ◽  
Significant Difference ◽  
Listening Studies ◽  
Meta Analyses

BackgroundCerebral lateralisation appears to be decreased in schizophrenia. Results of studies investigating this, however, are equivocal.AimsTo review quantitatively the literature on decreased lateralisation in schizophrenia.MethodMeta-analyses were conducted on 19 studies on handedness, 10 dichotic listening studies and 39 studies investigating anatomical asymmetry in schizophrenia.ResultsThe prevalence of mixed- and left-handedness (‘non-right-handedness’) was significantly higher in patients with schizophrenia as compared to healthy controls, and also as compared to psychiatric controls. The analysis of dichotic listening studies revealed no significant difference in lateralisation in schizophrenia. However, when analysis was restricted to studies using consonant-vowel or fused word tasks, significantly decreased lateralisation in schizophrenia emerged. Asymmetry of the planum temporale and the Sylvian fissure was significantly decreased in schizophrenia, while asymmetry of the temporal horn of the lateral ventricle was not.ConclusionStrong evidence is provided for decreased cerebral lateralisation in schizophrenia.

scholarly journals Endovascular Embolization of Distal Anterior Choroidal Artery Aneurysms Associated with Moyamoya Disease

2010 ◽  
Vol 16 (4) ◽  
pp. 433-441 ◽  
Author(s):  
S. Yang ◽  
J.-L. Yu ◽  
H.-L. Wang ◽  
B. Wang ◽  
Q. Luo
Keyword(s):  
Prognostic Factors ◽  
Literature Review ◽  
Moyamoya Disease ◽  
Lateral Ventricle ◽  
Endovascular Embolization ◽  
Parent Artery ◽  
Anterior Choroidal Artery ◽  
Temporal Horn ◽  
Anterior Choroidal ◽  
Choroidal Artery

We evaluated the feasibility of endovascular embolization for the management of distal anterior choroidal artery (AChA) aneurysms associated with moyamoya disease and performed a literature review to summarize their clinical features and treatment. We describe two cases of moyamoya disease-associated distal AChA aneurysms treated by endovascular embolization. In both cases, a good outcome was observed. We performed a MEDLINE (1980–2010) search which identified 13 similar cases. Our analysis of the clinical data from these 15 cases led us to conclude that (i) endovascular embolization is an effective and feasible treatment for distal AChA aneurysms associated with moyamoya disease; (ii) aneurysm location and the preservation of the parent artery are two major prognostic factors for moyamoya disease-associated distal AChA aneurysms subjected to craniotomy or endovascular therapy; (iii) the parent artery should be preserved when the aneurysm is located in the temporal horn of the lateral ventricle, but sacrificed when it is located in the trigone of the lateral ventricle.

Approach through the temporal horn of the lateral ventricle for clipping of large dorsal type basilar bifurcation aneurysms

1995 ◽  
Vol 133 (1-2) ◽  
pp. 17-21
Author(s):  
T. Sakaki ◽  
T. Matsuyama ◽  
T. Yabuno ◽  
H. Hashimoto ◽  
Sh Kurokawa ◽  
...  
Keyword(s):  
Lateral Ventricle ◽  
Temporal Horn

scholarly journals Preoperative obliteration of choroidal arteries in the treatment of large hypervascular tumors in the lateral ventricle

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yukihiro Yamao ◽  
Kazumichi Yoshida ◽  
Akira Ishii ◽  
Masahiro Tanji ◽  
Masakazu Okawa ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Lateral Ventricle ◽  
Postoperative Hemorrhage ◽  
Vascular Control ◽  
Tumor Removal ◽  
Temporal Horn ◽  
Lateral Posterior ◽  
Hypervascular Tumors ◽  
The Mean ◽  
Anterior Choroidal

Abstract Background Removal of large hypervascular tumors in the lateral ventricle still poses a surgical challenge. These tumors are usually fed from choroidal arteries, and vascular control is typically performed late during the removal. We aimed to evaluate the clinical efficacy of our strategy for persistent preoperative obliteration of feeders from the choroidal arteries to manage large hypervascular tumors in the lateral ventricle. Methods We retrospectively analyzed six patients with hypervascular tumors in the lateral ventricle. We first attempted to obstruct feeders using endovascular treatment, and, if unavailable, performed initial microsurgical occlusion through the temporal horn for the staged tumor removal. Results In all patients, feeder obliteration was successfully performed; the anterior choroidal arteries were occluded by the endovascular treatment and microsurgical occlusion in one and five patients, respectively, while the lateral posterior choroidal arteries were occluded via endovascular treatment in four patients. No patients had permanent symptoms due to feeder obliteration, and tumor devascularization was achieved at the mean rate of 69.9%. During the tumor removal, the mean blood loss volume was 253 ml. No postoperative hemorrhage had occurred, and all patients scored ≤ 2 on the modified Rankin Scale at six months post-removal. Conclusions Although further studies are warranted, persistent feeder obliteration of choroidal arteries could be an effective treatment strategy against large hypervascular tumors in the lateral ventricle.

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