Transcallosal-lateral ventricle-choroid fissure approach for excising large pineal region tumors extending into the third ventricle: experience in 15 pediatric cases

Author(s):  
Hu Xing ◽  
Liu Jing-ping ◽  
Qin Kun-ming ◽  
Liao Shen-chao ◽  
Tang Chun-hai ◽  
...  
2021 ◽  
Vol 5 (1) ◽  
pp. V15
Author(s):  
Jiuhong Li ◽  
Jiaojiang He ◽  
Lunxin Liu ◽  
Liangxue Zhou

A 57-year-old female presented with headache and dizziness for 3 months. Preoperative MRI revealed a lesion located at the pineal region and back side of the third ventricle, accompanied by hydrocephalus. The infratentorial supracerebellar approach may cause visuomotor, acousticomotor, and hearing disturbances. With the patient in a supine position, the authors used a frontal linear incision that was 3 cm anterior to the coronal suture and 2 cm away from the midline and an anterior endoscopic transcortical approach, which could achieve endoscopic third ventriculostomy, alleviating and preventing hydrocephalus due to postoperative adhesion and resection of the lesion at the same time. The pathological diagnosis was cavernous hemangioma. The video can be found here: https://stream.cadmore.media/r10.3171/2021.4.FOCVID215.


2004 ◽  
Vol 40 (6) ◽  
pp. 314-316 ◽  
Author(s):  
Federico Di Rocco ◽  
Massimo Caldarelli ◽  
Giovanni Sabatino ◽  
Gianpiero Tamburrini ◽  
Concezio Di Rocco

Neurosurgery ◽  
2009 ◽  
Vol 64 (2) ◽  
pp. 256-267 ◽  
Author(s):  
David I. Pitskhelauri ◽  
Alexander N. Konovalov ◽  
Valeri N. Kornienko ◽  
Natalia K. Serova ◽  
Nikita V. Arutiunov ◽  
...  

Abstract OBJECTIVE Surgical resection of deep-seated midline brain tumors does not always resolve obstruction of cerebrospinal fluid pathways, and an additional operation—ventricular shunting—is required. To prevent postoperative obstructive hydrocephalus, we combine tumor removal and internal ventricular shunting in 1 stage. METHODS Between 2000 and 2006, 82 patients with deep-seated midline brain tumors (tumors of the third ventricle, pineal region, thalamus, upper brainstem, and superior half of the fourth ventricle) underwent 84 tumor resections with intraoperative internal ventricular shunting. Two types of intraoperative shunting were performed: direct third ventriculostomy with fenestration of the premammillary membrane of the third ventricle floor and Liliequist's membrane, 53 operations; and aqueductal stenting, 30 operations. In 1 patient, third ventriculostomy and aqueductal stenting were performed simultaneously. RESULTS As most of the tumors had an infiltrative growth pattern, gross total tumor removal was achieved in only 31% of patients in this series. There were no fatal outcomes related to the surgery. Follow-up data were collected in 73 patients (89%) and ranged from 2 to 68 months (median, 16 months). Additional shunting because of inadequate function of stoma or stent was performed in 13 patients at various times after surgery (median, 30 days). The Kaplan-Meier survival analysis demonstrated that at 12 and 24 months the intraoperative direct third ventriculostomy success rates were 67 and 61%, respectively; aqueductal stenting success rates were 93% at both 12 and 24 months. CONCLUSION Intraoperative direct third ventriculostomy and aqueductal stenting under direct visual control were found to be reliable methods of hydrocephalus management in patients with deep-seated midline brain tumors.


2018 ◽  
Vol 16 (3) ◽  
pp. 389-390 ◽  
Author(s):  
Jianping Song ◽  
Wei Hua ◽  
Zhiguang Pan ◽  
Wei Zhu

Abstract Pineal tumor that extends into the posterior portion of the third ventricle is extremely deep-seated and surgically challenging. Various microscopic approaches have been introduced to acquire access to the posterior third ventricle, but still the exposure and visualization are relatively unfavorable. However, recently the application of high-definition endoscope gave neurosurgeons a much more magnified and clearer view of anatomy around the pineal region and third ventricle. The widely used supracerebellar infratentorial approach has been proven to offer a sufficient surgical corridor for fully endoscopic surgery for pineal tumor. We presented a case of a 13-yr-old male child with a posterior third ventricle tumor, which was surgically resected fully with the endoscope. An informed consent has been obtained from the patient and his guardians. In order to gain enough auto-retraction by gravity, diminish the pitfalls of the semisitting position, and enhance the surgeon's ergonomics, the patient was positioned with a modified “head-up” park bench position (the upper body was elevated and the head was slightly extended instead of anteflexion). The tumor was approached through suboccipital midline supracerebellar infratentorial trajectory. The superficial and deep drainage veins above the vermis were sacrificed and the quadrigeminal cistern was entered to expose the tumor. The first and the most important step of the operation was to de-vascularize the tumor bilaterally, then the tumor could be debulked and circumferentially resected. The gross total resection was achieved. Fully endoscopic supracerebellar infratentorial approach is feasible and efficient when addressing lesions located at the posterior portion of the third ventricle.


2021 ◽  
pp. 1-4
Author(s):  
Yanire Sánchez Medina ◽  
Yanire Sánchez Medina ◽  
Eric Robles Hidalgo ◽  
Jaime Domínguez Baez ◽  
Luis Gómez Perals

Introduction: Germ Cell Tumors (GCT) represent less than 4% of primary brain tumors. They comprise Germaniums, Non-Germinomatous Germ Cell Tumors and Teratomas. Teratomas represent less than 20% of intracranial GCT. They are tumors of multipotential cells derived from all 3 germ cell layers, frequently arising in midline structures, most commonly in the pineal and suprasellar regions, with a clear excess of male cases and frequently found in children and young adults. We report a case of a mature teratoma in the third ventricle in a 37-year-old male. Case Report: We report a case of a 37-year-old male with a history of headache lasting up to 9 days and refractory to pharmacological treatment. The CT scan revealed a 20mm round hypodense lesion in the anterior third ventricle, with a punctate hyperdensity in the inferior pole causing biventricular hydrocephalus with no periventricular lucency and the MRI showed a well-defined encapsulated mass lesion attached to the roof of the third ventricle, isointense in T1WI with circumferential enhancement and hyperintense in T2WI. Gross total resection was performed. Histopathologic evaluation revealed a mature teratoma. There was no evidence of recurrence on follow up MRI at 2 years. Conclusion: Intracranial teratomas typically originate in midline structures from optic chiasm to pineal region. Presentation after the first two decades of life is exceptional. Complete surgical resection is the only curative treatment for pure mature teratomas. We report the case of a mature teratoma in a 37-year-old male with unusual radiological findings.


1940 ◽  
Vol 86 (363) ◽  
pp. 591-601
Author(s):  
R. M. Stewart

A single small aperture connecting each lateral ventricle with the dorsocephalic portion of the third ventricle provides the sole means of escape for cerebro-spinal fluid, and consequently it follows that any interference with its patency will seriously retard the outward flow of ventricular fluid. Complete, or even partial, closure of the foramen leads to a rapid increase in the volume and pressure of imprisoned ventricular fluid so that a condition of internal hydrocephalus is soon established. Usually both foramina are occluded, the hydrocephalus being therefore bilateral and the ventricles more or less symmetrically enlarged. In rare instances, however, only one foramen is obstructed, in which case the dilatation will, of course, be confined to the ipsilateral ventricle. Unilateral hydrocephalus of this obstructive type is commonly caused by inflammatory conditions in the neighbourhood of the foramen, or by pedunculated tumours attached to the choroid plexus which enjoy a degree of movement sufficient to permit intermittent or permanent blockage of the foramen of Monro. It is, however, possible to find examples of unilateral hydrocephalus in which the outflow of cerebro-spinal fluid through the foramen of Monro is unimpeded, and in these the cause of the ventricular dilatation is to be sought in some diseased condition of the cerebral wall which has become so weakened as to be unable to resist even normal ventricular pressure. Such expansion may be either limited to one part of the lateral ventricle, or general, involving the entire body with its horns.


Author(s):  
Lacey M. Carter ◽  
Benjamin Cornwell ◽  
Naina L. Gross

AbstractChoroid plexus cysts consist of abnormal folds of the choroid plexus that typically resolve prior to birth. Rarely, these cysts persist and may cause outflow obstruction of cerebrospinal fluid. We present a 5-month-old male born term who presented with lethargy, vomiting, and a bulging anterior fontanelle. Magnetic resonance imaging showed one large choroid plexus cyst had migrated from the right lateral ventricle through the third ventricle and cerebral aqueduct into the fourth ventricle causing outflow obstruction. The cyst was attached to the lateral ventricle choroid plexus by a pedicle. The cyst was endoscopically retrieved from the fourth ventricle intact and then fenestrated and coagulated along with several other smaller cysts. Histologic examination confirmed the mass was a choroid plexus cyst. The patient did well after surgery and did not require any cerebrospinal fluid diversion. Nine months after surgery, the patient continued to thrive with no neurological deficits. This case is the first we have found in the literature of a lateral ventricular choroid plexus cyst migrating into the fourth ventricle and the youngest of any migrating choroid plexus cyst. Only three other cases of a migrating choroid plexus cyst have been documented and those only migrated into the third ventricle. New imaging advances are making these cysts easier to identify, but may still be missed on routine sequences. High clinical suspicion for these cysts is necessary for correct treatment of this possible cause of hydrocephalus.


2003 ◽  
Vol 15 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Alan P. Lozier ◽  
Jeffrey N. Bruce

Meningiomas of the third ventricle are a rare subtype of pineal region tumor that arise from the posterior portion of the velum interpositum, the double layer of pia mater that forms the roof of the third ventricle. The authors review the literature concerning these meningiomas and present a case in which the lesion was resected via the supracerebellar–infratentorial approach. The relationship of the tumor to the deep venous system and the splenium of the corpus callosum guides the selection of the most advantageous surgical approach. Posterior displacement of the internal cerebral veins demonstrated on preoperative imaging provides a strong rationale for use of the supracerebellar–infratentorial approach.


2011 ◽  
Vol 54 (03) ◽  
pp. 125-127 ◽  
Author(s):  
Z. Idris ◽  
A. R. I. Ghani ◽  
B. Idris ◽  
M. Muzaimi ◽  
S. Awang ◽  
...  

2020 ◽  
Vol 2 (Supplement_3) ◽  
pp. ii10-ii10
Author(s):  
Masahiro Nonaka ◽  
Junichi Takeda ◽  
Tetsuo Hashiba ◽  
Akio Asai

Abstract Intraoperative 5-ALA fluorescence diagnosis (PDD) has been shown to improve tumor resection rates in surgery for malignant glioma. Recently, the usefulness of PDD has been reported in tumors other than malignant glioma. However, the fluorescence of intraventricular tumors is not easy to observe under the microscope, because excitation light could not reach enough to the deepest part of the brain. Therefore, we performed endoscopic 5-ALA fluorescence diagnosis of intraventricular tumors and evaluated its usefulness. Ten cases of intraventricular tumors were included in the study. There were 3 germ cell tumors, 2 metastatic brain tumors, 2 pilocytic astrocytomas, 1 malignant lymphoma, 1 subependymoma, and 1 medulloblastoma (recurrent). The tumors were located in the third ventricle in four cases, the lateral ventricle in three cases, the lateral ventricle and the third ventricle in two cases, and the aqueduct in one case. Tumor removal was performed in 6 cases and tumor biopsy in 4 cases. Intraoperative fluorescence could be observed in eight cases: three germ cell tumors, two metastatic brain tumors, two pilocytic astrocytomas, and one malignant lymphoma. Subependymoma and medulloblastoma did not show fluorescence. Among the cases with confirmed fluorescence, the fluorescent sites were targeted for biopsies for germ cell tumors and malignant lymphomas. For metastatic brain tumors and pilocytic astrocytomas, the extent of removal was determined at the time of removal, and the presence of residual tumor was confirmed by fluorescence after removal. Endoscopic 5-ALA fluorescence diagnosis for intraventricular tumors was useful in determining the target of biopsy or the extent of excision and in assessing residual tumors.


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