Pictorial Review of the Congenital Abnormalities of the Facial Nerve, on CT and MRI

2017 ◽  
Vol 16 (06) ◽  
pp. 379-389
Author(s):  
Gratien Bonfort ◽  
Christian Debry ◽  
Anne Charpiot ◽  
Francis Veillon ◽  
Aina Venkatasamy
Keyword(s):  
Facial Nerve ◽  
Temporal Bone ◽  
Middle Ear ◽  
Congenital Anomalies ◽  
Imaging Features ◽  
Imaging Evaluation ◽  
Pictorial Review ◽  
Anatomical Images ◽  
Temporal Bone Imaging ◽  
Magnetic Resonance Imaging Mri

AbstractThe frequency and importance of the imaging evaluation of the temporal bone and middle ear have increased significantly over the past 30 years, especially prior to ear surgery. Nowadays, conventional computed tomography (CT) of the temporal bone and in fewer cases magnetic resonance imaging (MRI) of the middle ear allow a detailed evaluation of the small and complex structures of the ear and the surrounding nerves. Familiarity with the spectrum of congenital anomalies of the facial nerve and knowledge of normal facial nerve anatomy lead to simple well-defined diagnostic imaging criteria. The purpose of this article is to discuss the different imaging features of the congenital anomalies of the facial nerve, including agenesia, hypoplasia, anomalies of the course, size, and nerve duplications, compared with normal anatomical images at the same level of section for a better understanding, as the facial nerve must always be analyzed on temporal bone imaging, and any modification of its size or course has to be reported prior to any surgical procedure.

scholarly journals A case of a temporal bone meningioma presenting as a serous otitis media

2014 ◽  
Vol 3 (10) ◽  
pp. 204798161455504 ◽  
Author(s):  
Simon Nicolay ◽  
Bert De Foer ◽  
Anja Bernaerts ◽  
Joost Van Dinther ◽  
Paul M Parizel
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Temporal Bone ◽  
Otitis Media ◽  
Middle Ear ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Nasopharyngeal Tumor ◽  
Magnetic Resonance Imaging Mri ◽  
Serous Otitis Media

We report the imaging features of a case of a temporal bone meningioma extending into the middle ear cavity and clinically presenting as a serous otitis media. Temporal bone meningioma extending in the mastoid or the middle ear cavity, however, is very rare. In case of unexplained or therapy-resistant serous otitis media and a nasopharyngeal tumor being ruled out, a temporal bone computed tomography (CT) should be performed. If CT findings are suggestive of a temporal bone meningioma, a magnetic resonance imaging (MRI) examination with gadolinium will confirm diagnosis and show the exact extension of the lesion.

The crucial role of imaging in detection of facial nerve haemangiomas

2001 ◽  
Vol 115 (6) ◽  
pp. 510-513 ◽  
Author(s):  
Rami Salib ◽  
Elia Tziambazis ◽  
Ann-Louise McDermott ◽  
Swarupsinh Chavda ◽  
Richard Irving
Keyword(s):  
Facial Nerve ◽  
Temporal Bone ◽  
Crucial Role ◽  
Benign Neoplasm ◽  
Imaging Features ◽  
Resolution Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Nerve Tumour ◽  
Quality Imaging

Facial nerve haemangioma is a rare benign neoplasm accounting for 0.7 per cent of all tumours involving the temporal bone. The diagnosis of a facial nerve tumour is often missed or delayed. Early diagnosis is imperative as it influences the eventual outcome for facial nerve function. Prognosis is related to the size of the tumour, the severity and the duration of pre-operative paralysis. The definitive diagnosis of a facial nerve tumour rests exclusively with high resolution imaging of the temporal bone using enhanced magnetic resonance imaging (MRI) and thin-sectioned computed tomography (CT). This case emphasizes the crucial role that high quality imaging can play in the diagnosis of facial nerve tumours, and elegantly illustrates the imaging features of facial nerve haemangiomas.

Magnetic Resonance Imaging of the Facial Nerve

1989 ◽  
Vol 101 (3) ◽  
pp. 295-301 ◽  
Author(s):  
Donald G. Wortham ◽  
Louis M. Teresi ◽  
Robert B. Lufkin ◽  
William N. Hanafee ◽  
Paul H. Ward
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Temporal Bone ◽  
Resonance Imaging ◽  
Mr Images ◽  
Beam Hardening ◽  
Parotid Tumors ◽  
Seventh Nerve ◽  
Magnetic Resonance Imaging Mri

Magnetic resonance imaging (MRI) of the facial nerve was evaluated by studying normal volunteers and patients with diseases of the facial nerve with a 0.3 Tesla permanent-magnet MRI system with special surface colls. The normal MR images were correlated with the anatomy of thin cryosection specimens of fresh cadavers. The seventh nerve was followed from its nucleus in the brainstem through the temporal bone to the parotid gland bed. The entire labyrinth and tympanic portions, as well as the geniculate ganglion, could be shown with appropriate scan planes. Examples of brainstem diseases affecting the facial nerve and nucleus, facial neuromas, parotid tumors involving the facial nerve, and other diseases were studied. MRI is a technique that allows unique evaluation of the entire course of the facial nerve. It produces superior Images of the facial nerve with high-contrast resolution. Unlike computed tomography, there is no beam-hardening artifact from the temporal bone or exposure to ionizing radiation and contrast agents. MRI also allows visualization of the main trunks of the facial nerve in the parotid bed not possible with any other imaging technique.

Temporal Bone Pathology in Congenital Anomalies of the Oval Window and the Facial Nerve

1985 ◽  
Vol 12 (3) ◽  
pp. 139-148 ◽  
Author(s):  
Ryusuke Saito ◽  
Shuichi Watanabe ◽  
Akira Fujita ◽  
Akiko Fujimoto ◽  
Ikuo Inokuchi ◽  
...  
Keyword(s):  
Facial Nerve ◽  
Temporal Bone ◽  
Congenital Anomalies ◽  
Oval Window ◽  
Bone Pathology

scholarly journals Unilateral internal auditory canal stenosis with progressive facial weakness

2012 ◽  
Vol 18 (2) ◽  
pp. 179-182
Author(s):  
Sathiya Murali ◽  
Arpana Shekhar ◽  
S Shyam Sudhakar ◽  
Kiran Natarajan ◽  
Mohan Kameswaran
Keyword(s):  
Hearing Loss ◽  
High Resolution ◽  
Facial Nerve ◽  
Temporal Bone ◽  
Internal Auditory Canal ◽  
Facial Weakness ◽  
Profound Hearing Loss ◽  
Canal Stenosis ◽  
Temporal Bone Ct ◽  
Magnetic Resonance Imaging Mri

Internal auditory canal (IAC) stenosis is a rare cause of sensorineural hearing loss. Patient may present with symptoms of progressive facial nerve palsy, hearing loss, tinnitus and giddiness. High resolution temporal bone CT-scan and magnetic resonance imaging (MRI) are the important tools for diagnosis. No specific management has been devised. Here is presentation of a case of unilateral (left) IAC stenosis with profound hearing loss and progressive House Brackmann Grade III-IV facial weakness. The diameter of the IAC was less than 2 mm on high resolution temporal bone computed tomography (HRCT) scan. It was managed by facial nerve decompression by translabyrinthine approach in an attempt to prevent further deterioration of facial palsy. DOI: http://dx.doi.org/10.3329/bjo.v18i2.12014 Bangladesh J Otorhinolaryngol 2012; 18(2): 179-182

Primary middle-ear lymphoma in a child

2003 ◽  
Vol 117 (3) ◽  
pp. 205-207 ◽  
Author(s):  
Emer E. Lang ◽  
Rory M. Walsh ◽  
Mary Leader
Keyword(s):  
Hearing Loss ◽  
Facial Nerve ◽  
Temporal Bone ◽  
Middle Ear ◽  
Nerve Palsy ◽  
Facial Nerve Palsy ◽  
Conductive Hearing Loss ◽  
Motor Neurone ◽  
Hodgkin's Lymphoma ◽  
Conductive Hearing

The case of a five year old boy who presented with a lower motor neurone facial nerve palsy secondary to primary non-Hodgkin’s lymphoma (NHL) of the middle ear is discussed. Any child who presents with a facial nerve palsy and conductive hearing loss requires thorough evaluation to exclude the possibility of temporal bone malignancy.

Current issues of middle ear microsurgery

1995 ◽  
Vol 76 (1) ◽  
pp. 74-75
Author(s):  
O. K. Patyakina
Keyword(s):  
Facial Nerve ◽  
Middle Ear ◽  
External Auditory Canal ◽  
Cochlear Implantation ◽  
Congenital Anomalies ◽  
Rapid Development ◽  
Meniere’S Disease ◽  
Benign Tumors ◽  
Ménière’S Disease ◽  
Microsurgical Techniques

Ear microsurgery, which has more than 40 years of history, is associated with the name of S. Rosen (1952). To improve hearing in patients with otosclerosis, he proposed an operation to mobilize the stirrup, which led to the rapid development of stapedoplasty. Currently, microsurgical techniques are widely used for atresia, trauma and benign tumors of the external auditory canal, for congenital anomalies, trauma and benign tumors of the middle ear, in addition to otosclerosis and inflammatory pathology, for traumatic fistulas of the labyrinth windows, Meniere's disease, peripheral paralysis of the facial nerve, noise, otogenic liquorrhea, with cochlear implantation, etc.

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