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 VIDEO SECTION.OPERATIVE NUANCES: STEP BY STEP
Year : 2021  |  Volume : 69  |  Issue : 5  |  Page : 1200--1203

En-bloc Resection of A Giant Solid Hemangioblastoma of The Vermis


1 Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
2 Department of Neuroradiology, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Poodipedi Sarat Chandra
Neurosurgery, PI and Team leader COE and MEG Centre, Core Faculty Epilepsy and Functional Neurosurgery Division, All India Institute of Medical Sciences, New Delhi
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.329537

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Introduction: Hemangioblastomas (HMB) are extensively vascularized and benign neoplasms that are diagnosed predominantly in adults. The solid type of HMB is technically challenging to operate. The piecemeal resection of the tumor has been shown to have devastating intraoperative complications. Therefore, en-bloc tumor resection was shown to be the safest procedure to reduce the risk of intraoperative bleeding and facilitate the removal of large solid tumors. Unfortunately, most of these tumours are also not amenable for embolization, as they are fed by multiple pial vessels. However, the large arterial feeders may be embolized. Objective: This video abstract presents a case of en-bloc resection of a giant solid type of Vermian HMB. Surgical Technique: A 38-year-old male patient presented with headache and vomiting for 1 year, imbalance during walking for 6 months, and hoarseness of voice for 2 months. He underwent a CSF diversion procedure in another hospital and was referred to our center for definitive surgery. Contrast-enhanced MRI showed a large heterogeneously enhancing solid lesion of size 46 × 33 × 40 mm3 with central necrotic area in the posterior fossa with perilesional edema and several large flow voids on T2-MR sequence. Preoperative embolization was performed; however, there was no significant reduction in the vascularity of the lesion. The patient underwent a wide midline suboccipital craniotomy with C1 laminectomy and gross total en-bloc resection of HMB. Results: The patient had an uneventful recovery in the postoperative period. Conclusions: The safest approach in the resection of giant solid HMB involves proper preoperative planning and understanding the vascular pattern of the lesion, wide exposure, circumferential dissection, and the en-bloc delivery of the tumor.






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