Fig. 2From: Vocal cord paralysis: anatomy, imaging and pathology The vagal nerves in the posterior fossa.Axial heavily T2-weighted thin-slice MR image through the brainstem with the position of the nucleus ambiguus (white circles), the exit of the vagal nerves from the olivary sulcus (curved arrow), the cisternal segment of the vagal nerves (long arrow), and the pars nervosa of the jugular foramen (short arrow)Back to article page