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Updated: Jun 23, 2026

Modeling Posthemorrhagic Hydrocephalus of Prematurity in Rats
Published on: March 28, 2025
Hydrocephalus caused by a venous varix
M Arantes1, H Romão, M Resende
1Department of Neuroradiology, Hospital Pedro-Hispano, Rua Dr-Eduardo-Torres, 4454-509 Matosinhos, Portugal. mavildearantes@hotmail.com
Introduction:
Vascular malformations are uncommon causes of aqueductal obstruction. To our concern, only one case of hydrocephalus caused by a venous varix draining an unruptured arteriovenous malformation has been described in the literature.
Case Report:
We report the case of a 70-year-old woman presenting with progressive cognitive impairment, gait disturbance and urinary incontinence. Magnetic resonance imaging and magnetic resonance angiography revealed a large venous varix draining an unruptured arteriovenous malformation causing hydrocephalus.
Conclusion:
Although uncommon, it is necessary to consider the presence of a vascular malformation in adults who presented with signs of aqueductal obstruction.
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