Symptomatic de novo arteriovenous malformation in an adult: Case report and review of the literature.
BACKGROUND
Cerebral arteriovenous malformations (AVMs) have been long thought to be a congenital anomaly of vasculogenesis in which arteries and veins form direct connections forming a vascular nidus without an intervening capillary bed or neural tissue. Scattered case reports have described that AVMs may form de novo suggesting they can become an acquired lesion.


METHODS
The current case report describes a patient who presented with new-onset seizures with an initial negative magnetic resonance imaging (MRI) of the brain and subsequently developed an AVM on a MRI 9 years later.


CONCLUSIONS
This case joins a small, but growing body of literature that challenges the notion that all AVMs are congenital.
Department of Neurological Surgery, New York Medical College, Valhalla, New York, USA.
Jayson A
JA
Neil
Department of Neurological Surgery, New York Medical College, Valhalla, New York, USA.
Daphne
D
Li
Department of Neurological Surgery, New York Medical College, Valhalla, New York, USA.
Michael F
MF
Stiefel
Department of Neurological Surgery, New York Medical College, Valhalla, New York, USA.
Yin C
YC
Hu
AVM; AVM formation; adult onset AVM; arteriovenous malformation; de novo AVM