Sixth nerve palsy: Three case reports on different etiologies

Sixth nerve palsy is the commonest isolated cranial nerve palsy. Possessing the longest course, it is susceptible to damage through a myriad of etiologies, hence termed ‘false localizing sign’. Though frequently being a benign process with spontaneous recovery, it may be due to serious underlying pathology. Therefore, sixth nerve palsy requires careful clinical workup with tailored investigation. We are presenting three cases of isolated sixth nerve palsy having different etiologies.
 

Keywords: Sixth nerve palsy, False localizing sign, Etiology, MRI of the brain