Spontaneous thrombosis of basilar tip aneurysm: Role of neuroimaging and follow-up with review of literature.

The incidence of pediatric aneurysms is rare compared to that of the adults. The natural history and the course of these aneurysms were not well understood. We present a rare case of spontaneously thrombosed basillar tip nongiant aneurysm in a 9-year-old male child who presented with symptoms of mass effect and subsequently followed up by imaging over a period of 1 year.