The author studied anatomical variations of the origin of the chorda tympani nerve from the mastoid portion of the facial nerve. The studies were performed on 200 specimens of human temporal bone. It was found that the chorda tympani may arise from the facial nerve in three levels: most commonly from the mid third of its mastoid segment (70%), less commonly from the proximal third (20%), an...

Introduction: Acute facial nerve palsy secondary to neuroendocrine adenoma of the middle ear (NAME) is a rare disorder. There is only one case report in the literature describing similar findings.   Case Report: A 50-year-old man initially presented to ENT clinic with a right-sided middle ear mass and normal facial nerve function. Over the next six days,...

Introduction: Varicella-zoster virus may cause an infectious disease called Ramsay Hunt syndrome. The related symptoms include facial nerve palsy (FNP), otalgia, the vesicular eruptions of the auricle and external auditory canal, less common ocular movement disorder, facial hypoesthesia, myofascial pain, vestibular symptoms, hearing loss, dysphasia, vocal cord paralysis, as well as tongue paral...

Peripheral facial nerve paralysis is the most common form of motor cranial neuropathy. Several factors can cause Bell’s palsy such as vascular ischemia, intracranial lesions, iatrogenic damage, etc. Treatment relies on diagnosing the causing factor, varying from steroids to surgical techniques. Since there has been but few reports of facial nerve paralysis caused by dental infection, odon...

background: vestibular schwannoma (vs) is one of the skull base tumors originating from vestibular portion of eighth cranial nerve. recently, 2 micro-thulium laser is used in the surgery of some intracranial tumors. objectives: assessing the efficacy of 2 micro-thulium flexible hand-held laser fiber (revolixjrò) in microsurgical removal of vs. materials and methods: this retrospective non-rando...

background: the most common neoplasm of the salivary glands is pleomorphic adenoma and the most common complications of its surgical removal are facial nerve dysfunction (temporary or permanent) and auriculotemporal syndrome (frey’s syndrome). one of the surgical techniques in pleomorphic adenoma is partial parotidectomy. the whole excised tumor is surrounded by a safety margin of parotid tissu...

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...