A 68-year-old man with a history of large cell lung carcinoma presente
d 1 year after surgical management of the initial lesion, with a compl
ete unilateral IX-XII cranial nerve palsy with Horner's sign. This rar
e multiple cranial nerve palsy is called Villaret's syndrome. It sugge
sts an extracranial lesion located in the retroparotid space. Complete
basal skull radiology work up including computed tomography and magne
tic resonance imaging confirmed the location of the causal lesion in t
he retroparotid space.