scholarly journals Multiple Pulmonary Metastases following Total Removal of a Bilateral Parasagittal Meningioma with Complete Occlusion of the Superior Sagittal Sinus: Report of a Case

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Masataka Nakano ◽  
Toshihide Tanaka ◽  
Aya Nakamura ◽  
Mitsuyoshi Watanabe ◽  
Naoki Kato ◽  
...  
Keyword(s):  
Pulmonary Metastases ◽  
Superior Sagittal Sinus ◽  
Labeling Index ◽  
Ki 67 ◽  
Who Grade ◽  
Lung Lesions ◽  
Sagittal Sinus ◽  
Arterial Lumen ◽  
Hypervascular Tumor ◽  
Parasagittal Meningioma

Pulmonary metastases of benign meningiomas are extremely rare. The case of a 34-year-old man with bilateral parasagittal meningioma who developed pulmonary metastases is described. The meningioma was an enormous hypervascular tumor with invasion of the superior sagittal sinus. The tumor was resected completely and histologically diagnosed as transitional meningioma. The Ki-67 labeling index was 5%. Four months after operation, the patient subsequently developed bilateral multiple lung lesions later identified as metastases. The lung lesions were partially removed surgically and histologically diagnosed as meningothelial meningioma WHO grade I. The Ki-67 labeling index was 2%. The histological findings demonstrated that the tumor occupied the arterial lumen and the perivascular space, suggesting that pulmonary tumors might metastasize via the vascular route. The histopathological features and mechanisms of metastasizing meningiomas are reviewed and discussed.

scholarly journals Giant Parasagittal Meningioma with Complete Visual Loss in Young Female: A Case Report

2021 ◽  
Vol 31 (3) ◽  
pp. 199
Author(s):  
Patrice LWY Sinaga ◽  
Muhammad Ari Irsyad ◽  
Ridha Dharmajaya
Keyword(s):  
Case Report ◽  
Visual Loss ◽  
Superior Sagittal Sinus ◽  
Brain Mri ◽  
Young Female ◽  
Who Grade ◽  
Sagittal Sinus ◽  
Pathology Reports ◽  
The Right ◽  
Parasagittal Meningioma

<p>Parasagittal meningioma is a benign extra-axial tumor from the arachnoid cap cell that fills the parasagittal angle. This case report presents a case of a 21-years old young female with a history of complete visual loss, left side paresthesia, and progressive blunt headache. Brain MRI and MRV revealed a giant enhancing tumor measuring 9.2 cm x 8.41 cm x 7.5 cm on the right parietooccipital lobe with obstruction of the posterior third of the superior sagittal sinus. Gross total removal was achieved. The pathology reports confirmed a WHO grade I meningioma. The paresthesia and headache were improved, but the loss of visions did not change. Giant parasagittal meningioma may invade the superior sagittal sinus leading to intracranial hypertension. The surgical strategy should target the survival and postoperative quality of life. Occlusion of posterior third superior sagittal sinus affects deficiency venous return resulting in visual loss.</p>

scholarly journals Preoperative evaluation of the venous system during the surgery of parasagittal meningioma

2019 ◽  
Vol 10 (1) ◽  
pp. 79-83
Author(s):  
Yury G. Yakovlenko ◽  
Vladimir A. Moldovanov ◽  
Larisa V. Araslanova ◽  
Igor M. Blinov ◽  
Olga P. Suhanova
Keyword(s):  
Surgical Treatment ◽  
Clinical Observation ◽  
Superior Sagittal Sinus ◽  
Preoperative Evaluation ◽  
Successful Outcome ◽  
Main Task ◽  
Sagittal Sinus ◽  
Minimally Invasive Methods ◽  
Parasagittal Meningioma ◽  
Angiographic Diagnosis

Clinical observation of the patient with parasagittal meningioma at the level of the middle third of the superior sagittal sinus and falx is presented. When such tumors are removed, the main task is to prevent damage to the parasagittal veins, the injury of which can cause a persistent neurological defi cit in the postoperative period. A feature of this case is the complex use of advanced minimally invasive methods of angiographic diagnosis when planning surgical treatment, which signifi cantly increases the chances of a successful outcome of the operation.

scholarly journals MNG-07 A CASE OF TRANSFORMED ANAPLASTIC MENINGIOMA IN 18 YEARS

2019 ◽  
Vol 1 (Supplement_2) ◽  
pp. ii36-ii36
Author(s):  
Yu Fujii ◽  
Toshihiro Ogiwara ◽  
Daisuke Yamazaki ◽  
Kohei Nagamine ◽  
Tetsuyoshi Horiuchi
Keyword(s):  
Malignant Transformation ◽  
Histopathological Diagnosis ◽  
Ki 67 ◽  
Who Grade ◽  
Anaplastic Meningioma ◽  
Sagittal Sinus ◽  
Simpson Grade ◽  
Perifocal Edema ◽  
Consciousness Disturbance ◽  
Surgical Manipulation

Abstract INTRODUCTION Although 95% of meningiomas are benign tumor (WHO grade I), they rarely exist malignant transformation. It is well known that WHO II or III meningiomas rapidly grow and recurrent frequently. However, there are no common sense about duration of malignant transformation between previous reports. Here we report a case of anaplastic meningioma which showed malignant transformation in 18 years. CASE The patient was 77-year-old man. He was pointed out as having a 20-mm mass in the left occipital convexity at brain checkup 19 years before. After 6 months, the mass was totally removed (Simpson grade I) at previous hospital. Histopathological diagnosis revealed meningioma with psammoma body, whose Ki-67 index was below 1 %. Postoperative course was good and periodic follow up was abandoned. The patient presented with consciousness disturbance and right hemiparesis after 18 years from the first operation. CT scan showed a 30-mm mass with intratumoral hemorrhage and perifocal edema in the left occipital lesion. Tumor removal was performed. The border of the tumor was clear and the macroscopic view was compatible with meningioma at intraoperative findings. The tumor was removed as much as possible, but partially remained which were extended to superior sagittal sinus (Simpson grade III). Histopathological findings were anaplastic meningioma with sarcoid change, whose Ki-67 index was 70%. His neurological abnormality improved postoperatively. DISCUSSION In the previous report, anaplastic meningioma is a rare tumor, which is 1% of whole meningioma. The rate of malignant transformation is reported 12–38%. The cause of malignant transformation is reported to be radiation therapy, mechanical stimulation by surgical manipulation, viral infection, and loss of chromosome. Although recurrence rate is low at total resection of meningioma, there rarely exists malignant transformation after a long period of time like our case.

scholarly journals Management of inadvertent injury to superior sagittal sinus in parasagittal meningioma: technical note

2015 ◽  
Vol 42 (S1) ◽  
pp. S43-S43
Author(s):  
AA Ahmed ◽  
B Yarascavitch ◽  
N Murty
Keyword(s):  
Surgical Resection ◽  
Superior Sagittal Sinus ◽  
Lateral Wall ◽  
Technical Note ◽  
Venous Sinus ◽  
Sagittal Sinus ◽  
Sinus Wall ◽  
Venous Wall ◽  
Parasagittal Meningioma ◽  
Tamponade Effect

Background: Parasagittal meningioma is a common type of intracranial meningiomas. Surgical resection of such lesions can result in injury to superior sagittal sinus. In rare occasions, extended craniotomy might be required for uncontrollable hemorrhage from a lacerated venous wall. Objective: In order to avoid extended craniotomy, we attempted a surgical technique that would provide more sustained control over the lacerated venous sinus. Method: A 56 year old lady underwent surgical resection for parasagittal meningioma. The lateral wall of the superior sagittal sinus was preached while scraping the tumor capsule from the sinus wall. Owing to difficulty in controlling the bleeding site, a tack up falx-assisted tension suture was attempted with a mass of Gelfoam and Surgicel over the laceration. Results: Adequate control for the venous sinus laceration. Conclusion: The falx-assisted suturing technique is quick, easy to perform and efficient in maintaining a constant tamponade effect over the lacerated site. We highly recommend such technique prior to extending the craniotomy over an injured venous sinus.

scholarly journals Prognostic Importance of Ki-67 Labeling Index in WHO Grade II Glial Tumors

2017 ◽  
Vol 99 (2) ◽  
pp. E116
Author(s):  
G. Kanyilmaz ◽  
H. Onder ◽  
M. Aktan ◽  
M. Koc ◽  
H. Bora ◽  
...  
Keyword(s):  
Labeling Index ◽  
Ki 67 ◽  
Who Grade ◽  
Glial Tumors ◽  
Grade Ii ◽  
Prognostic Importance
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