The great imitator: IgG4 periaortitis masquerading as an acute aortic syndrome on computed tomographic angiography.We present the case of a 52-year-old woman who presented to the emergency department with chest and neck pain. 
computed tomographic angiography
Initial cervical spine magnetic resonance imaging shows an abnormal flow void in the left vertebral artery, which prompted a computed tomographic angiogram. 
magnetic resonance imaging
Initial cervical spine magnetic resonance imaging shows an abnormal flow void in the left vertebral artery, which prompted a computed tomographic angiogram. 
computed tomographic angiogram