Interhemispheric Transtentorial Approach to a Teratoma of the Pineal Region

2022 ◽  
Author(s):  
Giuseppe Cinalli ◽  
Marcello Barbato
2016 ◽  
Vol 40 (videosuppl1) ◽  
pp. 1 ◽  
Author(s):  
Sun Liyong ◽  
Yuhai Bao ◽  
Jiantao Liang ◽  
Mingchu Li ◽  
Jian Ren

The posterior interhemispheric approach is a versatile approach to access lesions of the pineal region, posterior incisural space, posterior region of third ventricle, and adjacent structures. We demonstrate the case of a 26-year-old woman with symptoms of increased intracranial pressure and hydrocephalus caused by a meningioma at the posteromedial tentorial incisura. Gross-total removal of the tumor was successfully achieved via a posterior interhemispheric transtentorial approach. The patient reported an immediate and significant symptomatic improvement after surgery. The detailed operative technique and surgical nuances, including the surgical corridor, tentorium incision, tumor dissection and removal are illustrated in this video atlas.The video can be found here: https://youtu.be/nSNyjQKl7aE.


2007 ◽  
Vol 65 (4a) ◽  
pp. 1000-1006 ◽  
Author(s):  
Hamilton Matushita ◽  
Fernando Campos Pinto ◽  
José Píndaro Pereira Plese

Meningiomas are uncommon tumors in children and either more rarely encountered in the pineal region. We report two cases of meningioma of the pineal region in children. One of these cases was a five years-old girl and the other a one year-old boy. No specific clinical presentation or tomographic examinations findings was identified before treatment, suggestive of a diagnosis of menigioma. The clinical and laboratory features were very similar to the most common tumors of the pineal region. Prior to the surgery, the histology of these tumors was not suspected. Both patients underwent direct surgery and complete removal was achieved by a suboccipital transtentorial approach. The tumors originated from velum interpositum in both cases. At the follow up, one case presented with recurrence six years later, and she underwent a reoperation with total resection without morbidity. Long-term follow up presented no other recurrences.


2021 ◽  
Vol 5 (1) ◽  
pp. V8
Author(s):  
Abdullah Keles ◽  
Burak Ozaydin ◽  
Mustafa K. Baskaya

The paramedian supracerebellar transtentorial approach allows unobstructed exposure to the quadrigeminal cistern, tectal plate, pineal region, tentorial incisura, medial basal temporal lobe, and posterior ambient cistern. The authors present a meningioma of the posterolateral tentorial incisura case in a 62-year-old male who presented with a long history of upper-extremity tremors and walking difficulties. MRI revealed supra- and infratentorial tumor extension and hydrocephalus. This approach enabled us to achieve gross-total resection without causing neurovascular injury or any postoperative neurological deficits. For each pathology, the pros and cons of various approaches should be considered based on the anatomy, vasculature, and any surrounding structures. The video can be found here: https://stream.cadmore.media/r10.3171/2021.4.FOCVID2138.


2018 ◽  
Vol 20 (1) ◽  
pp. 22-26
Author(s):  
Andrei Fernandes Joaquim ◽  
Marcos Juliano Dos Santos ◽  
Élton Gomes Da Silva ◽  
Hélder Tedeschi

We describe the surgical anatomy and technical aspects of the interoccipital transtentorial approach to lesions of the dorsal midbrain and pineal region using the lateral-semiprone position. This approach offers a wide exposure of the posterior midbrain and pineal region tumors, avoiding the risks of the semi-sitting position used for the supracerebellar infratentorial approach. A step-by-step description of the approach is presented, with detailed anatomical pictures and case illustrations.


2021 ◽  
Vol 5 (1) ◽  
pp. V3
Author(s):  
Brian J. A. Gill ◽  
Dominique M. Higgins ◽  
Matei A. Banu ◽  
Michael G. Argenziano ◽  
Neil A. Feldstein ◽  
...  

Germ cell tumors account for up to 53% of the malignant lesions found in the pineal region and are typically managed with a combination of radiation therapy and chemotherapy. Malignant somatic transformation of intracranial germ cell tumors is exceedingly rare and has only been reported on two other occasions. Here the authors present the case of a pineal yolk sac tumor that failed optimum first-line treatment and underwent malignant somatic transformation to an enteric mucinous adenocarcinoma requiring surgical intervention. This video demonstrates the technical nuances of the occipital transtentorial approach and the safe microsurgical dissection of lesions within the pineal region. The video can be found here: https://stream.cadmore.media/r10.3171/2021.4.FOCVID2151.


2019 ◽  
Vol 131 ◽  
pp. 167-173 ◽  
Author(s):  
Motoki Tanikawa ◽  
Hiroshi Yamada ◽  
Tomohiro Sakata ◽  
Yasuhiko Hayashi ◽  
Yasuo Sasagawa ◽  
...  

2012 ◽  
Vol 19 (2) ◽  
pp. 103-109
Author(s):  
M. Radoi ◽  
L. Danaila ◽  
F. Stefanescu ◽  
R. Vakilnejad ◽  
Roxana Popa

Abstract Meningiomas rarely occur in the pineal region, but they can reach huge diameters. We presented the case of a patient with a very large meningioma of the pineal region (6x5x4 cm). The tumor, developed from the falcotentorial junction, was totally removed via an occipital interhemispheric transtentorial approach with minimal postoperative neurological deficits. The postoperative course was complicated with an acute internal hydrocephalus that needed temporary placement of an external ventricular drainage. The supratentorial surgical corridors allow for increased exposure and are best suited for falcotentorial meningiomas.


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