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Year : 2016  |  Volume : 11  |  Issue : 3  |  Page : 315

Delayed supratentorial intracerebral hemorrhage following posterior fossa surgery

1 Department of Neurosurgery, PGIMER, Chandigarh, India
2 Department of Radiodiagnosis, PGIMER, Chandigarh, India

Correspondence Address:
Dr. Ashish Aggarwal
Neurosurgery, PGIMER, Chandigarh - 160 012
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1793-5482.144166

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Delayed supratentorial intracerebral hematoma after posterior fossa surgery is uncommon. Only few cases have been reported in the past. The cause has been attributed to sitting position leading to changes in intracranial arterial and venous pressures. We report two cases of delayed intracerebral hematoma following posterior fossa surgery, none of which were operated in sitting position. MR venogram done in one patient showed venous sinus thrombosis. Intracererbal hematoma following infratentorial surgery is uncommon and is possibly due to venous sinus thrombosis leading to venous hypertension. Control of bleeding from venous sinuses due to avulsion of emissary veins during craniotomy/craniectomy possibly induces sinus thrombosis that may propagate antegrade or retrograde, leading to venous hypertension and parenchymal bleed.

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