title: Myasthenic "oculomotor" palsy.
abstract: A patient is described who presented with an abrupt onset of diplopia in association with a drooping lid. The motility pattern was consistent with a pupil sparing oculomotor nerve palsy. In addition, the behavior of the palpebral fissure was characteristic of aberrant regeneration. Intravenous Tensilon resulted in a prompt elevation of the lid and improvement in eye movements. The differential diagnosis of a pupil sparing third nerve palsy should include myasthenia gravis.
mesh_terms: D000328:Adult; D001763:Blepharoptosis / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology; D003920:Diabetes Mellitus / Q000628:therapy; D003929:Diabetic Neuropathies / Q000150:complications / Q000175:diagnosis / Q000188:drug therapy; D003937:Diagnosis, Differential; D004491:Edrophonium; D006801:Humans; D008297:Male; D009157:Myasthenia Gravis / Q000150:complications* / Q000175:diagnosis; D009886:Ophthalmoplegia / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*
chemical_list: D004491:Edrophonium