enign tumors of the larynx are uncommon compared o their malignant counterparts. Even less common are eoplasms of nervous origin, such as schwannomas and eurofibromas. This neurogenous group also contains less requent varieties, including the palisaded encapsulated euroma (or solitary circumscribed neuroma).1,2 In general, palisaded encapsulated neuromas account or approximately 25% of all tumo...

Using clicks with varying interstimulus intervals and coherent tone-bursts, early components of the auditory evoked potential (brain stem responses) were studied in four patients with confirmed acoustic neuroma. Abnormalities in responses appeared with shorter interstimulus intervals and with tone-bursts delivered monaurally to the involved ear; bilateral alterations occurred in one patient wit...

Morton neuroma, or interdigital neuritis, is a compression neuropathy with associated perineural fibrosis that is caused by entrapment of the interdigital nerve near the distal edge of the transverse intermetatarsal ligament. The second and third interdigital nerves in the forefoot are most commonly involved. In one series, Morton neuroma was found to occur at an average age of 55 years (range,...

For citation purposes: Passier L, Doherty D, Smith J, McPhail SM. Vestibular rehabilitation following the removal of an acoustic neuroma: a systematic review of randomized trials. Head Neck Oncol. 2012 Sep 9;4(2):59. Copyright © 2012 OA Publishing London Abstract Introduction An acoustic neuroma (also known as vestibular schwannoma) is an intracranial tumour of the vestibular nerve that is comm...

In this issue of the AJNR, Dr. Sartoretti-Schefer et al (page 810) present a novel study investigating imaging of the facial nerve and its relationship with acoustic tumors. They point out that it has been reported in the literature that the facial nerve lies anteriorly to the tumor 98% of the time. With the T2-weighted fast spin-echo MR technique, they could identify consistently the entire co...

cochlear nerve (cn) aplasia refers to the absence of a visible cn on oblique sagittal magnetic resonance images of the lateral aspect of the inner auditory canal (iac). magnetic resonance (mr) is the preferred technique in patients with sensorineural hearing loss and/or vertigo; however, computed tomography (ct) is used to evaluate the iac or facial nerve canal. three types of aplasia or hypopl...

BACKGROUND Perineuriomas have been defined as tumorous lesions of the peripheral nerves which derive from perineurial cell proliferation and may be associated with abnormalities on chromosome 22. CASE PRESENTATION Three years after a painful cubital vein procaine injection, a 33 year-old man developed a median nerve lesion, initially diagnosed as carpal tunnel syndrome. Symptoms progressed de...