• Robert G Briggs, Ryan G Jones, Andrew K Conner, Parker G Allan, Hannah B Homburg, B David Maxwell, Kar-Ming Fung, and Michael E Sughrue.
• Department of Neurosurgery, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma, USA.
• World Neurosurg. 2019 Jul 1; 127: 155-159.

BackgroundTumors protruding into the cerebral aqueduct are rare, and tumors arising from within the cerebral aqueduct are rarer still.Case DescriptionIn this report, we discuss the presentation and clinical outcome of a 65-year-old man who presented to us with symptoms of hydrocephalus. Prior imaging had revealed a small enhancing nodule within the cerebral aqueduct. In the 6 months between initial imaging and our seeing the patient, the tumor demonstrated substantial interval growth, so the patient was offered resection. The tumor was accessed using a sitting, supracerebellar, intracollicular approach, which allowed for gross total resection of the mass without complication. Histopathology later revealed the lesion to be a hemangioblastoma. Two years after surgery, the patient was doing well with no neurologic deficits.ConclusionsWe report the first case of an aqueductal hemangioblastoma and describe our use of a sitting, supracerebellar, intracollicular approach to access tumors occupying this cerebrospinal fluid space.Copyright © 2019 Elsevier Inc. All rights reserved.

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