Intramedullary Spinal Cord Ependymoma

Neurosurgery ◽  
1999 ◽  
Vol 44 (2) ◽  
pp. 269-269
Author(s):  
Kintomo Takakura
Keyword(s):  
Spinal Cord ◽  
Intramedullary Spinal Cord ◽  
Spinal Cord Ependymoma

Microsurgical resection of intramedullary spinal cord ependymoma

2014 ◽  
Vol 37 (v2supplement) ◽  
pp. Video9
Author(s):  
Paul C. McCormick
Keyword(s):  
Spinal Cord ◽  
Growth Rate ◽  
Spinal Cord Tumor ◽  
Intramedullary Spinal Cord ◽  
Clear Margin ◽  
Intramedullary Spinal Cord Tumor ◽  
Link Type ◽  
Microsurgical Resection ◽  
Spinal Cord Ependymoma ◽  
Posterior Midline

Ependymomas are the most commonly occurring intramedullary spinal cord tumor in adults. With few exceptions these tumors are histologically benign, although they exhibit some biologic variability with respect to growth rate. While unencapsulated, spinal ependymomas are non-infiltrative and present a clear margin of demarcation from the surrounding spinal cord that serves as an effective dissection plane. This video demonstrates the technique of microsurgical resection of an intramedullary ependymoma through a posterior midline myelotomy.The video can be found here: http://youtu.be/lcHhymSvSqU.

Surgical Outcome of Intramedullary Spinal Cord Ependymoma

1999 ◽  
Vol 141 (4) ◽  
pp. 341-347 ◽  
Author(s):  
K. Ohata ◽  
T. Takami ◽  
T. Gotou ◽  
K. El-Bahy ◽  
M. Morino ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Surgical Outcome ◽  
Intramedullary Spinal Cord ◽  
Spinal Cord Ependymoma

Magnetic Resonance Imaging Features of Intramedullary Spinal Cord Tumors with Pathological Correlations

2013 ◽  
Vol 19 (1) ◽  
pp. 51-66
Author(s):  
Jureerat Thammaroj ◽  
Amnat Kitkhandee ◽  
Parinyaporn Tumkot ◽  
Pichayen Duangtongpol ◽  
Sakda Waraosawapati
Keyword(s):  
Magnetic Resonance Imaging ◽  
Spinal Cord ◽  
Magnetic Resonance ◽  
Signal Intensity ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Spinal Cord Tumors ◽  
Intramedullary Spinal Cord ◽  
Cystic Component ◽  
Spinal Cord Ependymoma

Objective: The purpose of this study was to determine characteristic imaging findings of intramedullary spinal cord tumor in magnetic resonance imaging (MRI). Material and Methods: We retrospectively analyzed MRI in 15 patients with histologicaly proven intramedullary spinal cord tumors. The demographic data, MRI findings with histological findings were recorded in terms of age, location, length, morphology, signal intensity, the presence or absence of cyst and hemorrhage, enhancement pattern, other associated findings, necrosis, vascular proliferation and WHO grading. Results: Among the 15 patients, spinal cord ependymomas were eccentric 75%, well-define border 62.5% and cervicothoracic spine located 37.5%. Spinal cord astrocytomas were eccentrically located and ill-define border 85.7%, cervicothoracic and thoracic spine located 28.5%. A cystic component was seen in 87.5% of spinal cord ependymoma and 71.5% of astrocytomas. Intratumoral hemorrhage occurred in 75% of spinal cord ependymomas, and 57.1% of astrocytomas. In 12.5% of spinal cord ependymomas, a curvilinear low T2 signal, suggesting marginal hemorrhage, was seen at the upper and/or lower margins of the tumors. Twenty-five percent of spinal cord ependymoma and 57.2% of astrocytomas showed heterogeneous enhancement, while in 12.5% of spinal cord ependymomas, enhancement was homogeneous. Conclusion: Although no statistically significant characteristic MRI feature to distinguish between ependymoma and astrocytoma is detected. By percentage we found that border, length and signal intensity of tumors may help diagnosis. With pathological correlation, all of spinal cord ependymomas are mark hypervascular tumor, but astrocytomas never showed.

Natural history of intramedullary spinal cord ependymoma in patients preferring nonoperative treatment

2017 ◽  
Vol 135 (1) ◽  
pp. 93-98 ◽  
Author(s):  
Bedjan Behmanesh ◽  
Florian Gessler ◽  
Stephan Dützmann ◽  
Daniel Dubinski ◽  
Lioba Imoehl ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Natural History ◽  
Nonoperative Treatment ◽  
Intramedullary Spinal Cord ◽  
History Of ◽  
Spinal Cord Ependymoma

Laser-assisted microsurgical resection of thoracic intramedullary spinal cord ependymoma

2012 ◽  
Vol 33 (Suppl1) ◽  
pp. 1 ◽  
Author(s):  
James K. Liu
Keyword(s):  
Spinal Cord ◽  
Progression Free Survival ◽  
Neurophysiological Monitoring ◽  
Surgical Morbidity ◽  
Intramedullary Spinal Cord ◽  
Neurological Improvement ◽  
Formidable Challenge ◽  
Microsurgical Techniques ◽  
Microsurgical Resection ◽  
Spinal Cord Ependymoma

The surgical management of intramedullary spinal cord ependymomas remains a formidable challenge amongst neurosurgeons because of the potential risk of surgical morbidity. From on an oncological perspective, complete resection—if technically feasible—should be the goal of surgery, since this can result in excellent local control and progression-free survival. Advances in microsurgical techniques, intraoperative neurophysiological monitoring, and the use of lasers have contributed to our ability to achieve gross-total resection. This is also largely dependent on the presence of an identifiable surgical plane of dissection between the tumor and spinal cord, which appears to have a positive prognosis with overall neurological improvement. In this operative video manuscript, the author demonstrates an illustrative step-by-step technique for microsurgical resection of a thoracic intramedullary spinal cord ependymoma (T-3 to T-5) associated with an extensive cervicothoracic syrinx. The application of a handheld non-contact CO2 laser for performing the midline myelotomy is also highlighted. The operative technique and surgical nuances, including the surgical approach, intradural tumor removal, and closure, are illustrated in this video atlas. The video can be found here: http://youtu.be/itE2tuBFmgw.

Multisegmental Versus Monosegmental Intramedullary Spinal Cord Ependymomas: Perioperative Neurological Functions and Surgical Outcomes

2021 ◽  
Author(s):  
Chenlong Yang ◽  
Jianjun Sun ◽  
Jingcheng Xie ◽  
Bin Liu ◽  
Tao Wang ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Surgical Outcomes ◽  
Functional Outcomes ◽  
Japanese Orthopaedic Association ◽  
Who Grade ◽  
Intramedullary Spinal Cord ◽  
Clinical Prognosis ◽  
Spinal Cord Ependymoma

Abstract Objectives: Multiple factors, such as tumor size, lateralization, tumor location, accompanying syringomyelia, and regional spinal cord atrophy, may affect the resectability and clinical prognosis of intramedullary spinal cord ependymomas. However, whether long-segmental involvement of the spinal cord may impair functional outcomes remains unclear. This study was aimed to compare perioperative neurological functions and long-term surgical outcomes between multisegmental ependymomas and their monosegmental counterparts.Methods: A total of 54 patients with intramedullary spinal cord ependymoma (WHO Grade II) were enrolled, and all of them underwent surgical resection. The patients were classified into the multisegmental group (n=40) and the monosegmental group (n=14). Perioperative and long-term (average follow-up period, 53.5 ± 18.2 months) neurological functions were evaluated using the modified McCormick (mMC) scale and the modified Japanese Orthopaedic Association (mJOA) scoring system.Results: Preoperative neurological functions in the multisegmental group were significantly worse than those in the monosegmental group (P < 0.05). However, postoperative short-term neurological functions, as well as long-term functional outcomes, were similar between the two groups (P > 0.05). Logistic regression analysis showed that only preoperative mMC and mJOA scores were significantly correlated with neurological improvement during the follow-up period (P < 0.05).Conclusion: Multisegmental involvement of the spinal cord is associated with worse neurological functions in patients with intramedullary spinal cord ependymoma, while the long-term prognosis is not affected. The preoperative neurological status of the patient is the only predictor of long-term functional improvement.

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