期刊
TAIWAN JOURNAL OF OPHTHALMOLOGY
卷 11, 期 1, 页码 25-38出版社
WOLTERS KLUWER MEDKNOW PUBLICATIONS
DOI: 10.4103/tjo.tjo_69_20
关键词
Idiopathic intracranial hypertension; magnetic resonance imaging; pseudotumor cerebri
Idiopathic intracranial hypertension (IIH) is a disorder of unknown cause that leads to increased pressure within the skull. While classic symptoms include headache and papilledema, atypical presentations such as ocular motor disturbances and hearing loss should also be recognized by clinicians for timely investigation.
Idiopathic intracranial hypertension (IIH) is a disorder of unknown etiology that results in isolated raised intracranial pressure. Classic symptoms and signs of IIH include headache, papilledema, diplopia from sixth nerve palsy and divergence insufficiency, and pulsatile tinnitus. Atypical presentations include: (1) highly asymmetric or even unilateral papilledema, and IIH without papilledema; (2) ocular motor disturbances from third nerve palsy, fourth nerve palsy, internuclear ophthalmoplegia, diffuse ophthalmoplegia, and skew deviation; (3) olfactory dysfunction; (4) trigeminal nerve dysfunction; (5) facial nerve dysfunction; (6) hearing loss and vestibular dysfunction; (7) lower cranial nerve dysfunction including deviated uvula, torticollis, and tongue weakness; (8) spontaneous skull base cerebrospinal fluid leak; and (9) seizures. Although atypical findings should raise a red flag and prompt further investigation for an alternative etiology, clinicians should be familiar with these unusual presentations.
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