Jorge Valderrama - National Institute of Neurology and Neurosurgery Manuel Velasco Suarez, Mexico City, Mexico
Ricardo Garcia - National Institute of Neurology and Neurosurgery Manuel Velasco Suarez, Mexico City, Mexico
Guru Satyarthee - Department of Neurosurgery, Jai Prakash Narayan Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
Willem Guillermo Calderon-Miranda - Hospital General Dr.Manuel Gea González, Mexico City, Mexico

Background and Importance: Intracranial pial arteriovenous fistula is a recently described matter as a rare vascular malformation occurring in children. It is usually located in the subpial space in the intracranial cavity with a high-flow shunt. Case Presentation: Authors report on a 2-year-old child with intracranial pial arteriovenous fistula andprogressive enlargement of head and seizures mimicking progressive obstructive hydrocephalus for eight months. Cranial computed tomography showed a hyperdense midline vein of Galen and enlarged straight sinus associated with obstructive hydrocephalus. Presence of an aneurysm of the vein of Galen was suspected. Conclusion: Authors believe that cranial screening with computed tomography for suspected early diagnosis is of high importance

Pial; Arteriovenous; Fistula; Galen; Aneurysm; Pediatric; Embolization; Hydrocephalus