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Year : 2021  |  Volume : 69  |  Issue : 2  |  Page : 406--413

Is “En Masse” Tumor Resection a Safe Surgical Strategy for Low-Grade Gliomas? Feasibility Report on 74 Patients Treated Over Four Years

1 Department of Neurosurgery, K. E. M Hospital, and Seth G. S. Medical College, Parel; Department of Neurosurgery, Lilavati Hospital and Research Centre, Bandra (E), Mumbai, Maharashtra, India
2 Department of Neurosurgery, K. E. M Hospital, and Seth G. S. Medical College, Parel, Mumbai, Maharashtra, India

Correspondence Address:
Prof. Atul Goel
Head of Department, Department of Neurosurgery, K. E. M. Hospital and Seth G. S. Medical College, Parel, Mumbai - 400 012, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0028-3886.314527

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Background: Gliomas are “confined” tumors arising from a named white fiber tract and displacing adjoining “normal” white fibers. The surgical strategy of “en masse” resection of gliomas based on this concept is evaluated. Objective: We evaluate the feasibility of the surgical strategy of “en masse” tumor resection for low-grade gliomas arising from the short arcuate fibers. Methods: We retrospectively evaluated our series of 74 patients with low-grade gliomas involving the short arcuate fibers who were operated on between the years January 2016 and June 2019. The tumor resection was done on the premise that gliomas arise from and grew along a specific white fiber tract and the expanding tumor displaced but did not transgress the border formed by adjoining tracts. Although modified as per the situation, an en masse tumor resection strategy was the basis of surgical resection. Intraoperative motor cortical and subcortical mapping was performed in 14 cases. Awake surgery was performed on 11 patients. Results: There were 46 males and 28 females. Total/supratotal tumor resection was achieved in 62 (83.8%) patients. Forty-seven patients had an essentially en masse tumor resection. Seventy-one patients improved in their preoperative complaints. The follow-up ranged from 11 to 56 months. Sixty-two patients who underwent a total or supratotal resection were not given any adjuvant treatment. Twelve patients with subtotal resection were subjected to adjuvant radiotherapy with or without additional chemotherapy. Conclusions: En masse tumor resection of low-grade gliomas is possible and “safe” based on understanding that gliomas are “confined” tumors and have a well-defined plane of surgical dissection.


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