Spontaneous regression of an infantile dural sinus fistula with pial recruitment.

Infantile dural sinus fistulas are rare and generally have a poor prognosis unless treatment can be undertaken. We report a unique case of an infantile dural sinus fistula with secondary pial recruitment that was managed conservatively. Subsequent spontaneous regression of the lesion occurred over 11 months. The clinical and angiographic features that indicated a probable favorable prognosis are discussed.