Fig. 16

Aortic arch aneurysm. A 44-year-old patient with a history of systemic lupus erythematosus and herpes zoster infection presenting with symptoms of left VCP. Because of the patient’s history, a FDG-PET with low-dose CT was obtained. a Fused PET-CT image at the level of the cricoid showed widening of the left laryngeal ventricle (long arrow), note the increased FDG-uptake in the unaffected right vocal cord due to hypertrophy (short arrow). b Images at the level of the aortic arch showed a mass in the AP-window without FDG uptake (*). c Contrast-enhanced MR angiography of the aortic arch showed a saccular aneurysm (*) causing compression of the vagal nerve at the site of the branching of the left laryngeal recurrent nerve, thereby causing VCP