title: Trochlear nerve palsy as a false localizing sign.
abstract: A 12-year-old boy developed a fourth nerve palsy during the course of pseudotumor cerebri syndrome. False or nonlocalizing signs that occur during the course of intracranial disease are briefly reviewed. The rarity of a fourth nerve palsy as a false localizing sign is pointed out. However, the question is raised whether a number of subtle fourth nerve palsies go unnoticed and that the true incidence of false localizing fourth nerve palsies is higher.
mesh_terms: D002648:Child; D006801:Humans; D008297:Male; D009886:Ophthalmoplegia / Q000209:etiology*; D010211:Papilledema / Q000209:etiology; D011559:Pseudotumor Cerebri / Q000150:complications* / Q000175:diagnosis; D014057:Tomography, X-Ray Computed; D014321:Trochlear Nerve