[Unilateral infarction of the cervical spinal cord. 2 cases identified by MRI].

We report two cases of unilateral upper cervical spinal cord infarction in the territory supplied by the anterior spinal artery. Early nonspecific MRI abnormalities consisted of hypointense T1 signal and hyperintense T2 signal. A late MRI study showed partial decrease in lesion size due to perifocal edema resorption with negative Gd-DTPA enhancement. The presumed cause of infarction was occlusion of a sulcocommissural artery or of the ipsilateral nutrient branch of the spinal artery.