The patient has a history of Behçet disease.

Behçet disease (BD) is a multisystem vasculitis of unknown origin.

Neurologic involvement includes typical and atypical parenchymal neuro-Behçet disease, dural sinus thrombosis, cerebral arterial aneurysm, occlusion, dissection, and meningitis

Parenchymal neuro-Behçet primarily affects the brainstem (especially the mesodiencephalic junction, around the cerebral peduncles and the pons) or the basal ganglia, thalami, or subcortical white matter.