scholarly journals Intraparotid Facial Nerve Schwannoma with Temporal Bone Extension

2012 ◽  
Vol 27 (1) ◽  
pp. 23-27
Author(s):  
Alexander T. Laoag ◽  
Antonio H. Chua ◽  
Thanh Vu T. De Guzman ◽  
Samantha S. Castañeda ◽  
Jose A. Malanyaon
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Hypoglossal Nerve ◽  
Tumor Resection ◽  
Facial Nerve Paralysis ◽  
Resonance Imaging ◽  
Nerve Paralysis ◽  
Nerve Tumor ◽  
Facial Nerve Schwannoma

Objective: To present a rare case of facial schwannoma manifesting as a parotid mass and discuss its diagnosis and treatment.Methods:     Design: Case Report     Setting: Tertiary Government Hospital     Patient: OneResults: A 48-year-old female was seen for a 2-year progressive left hemifacial paralysis and a 5-month gradually enlarging left infraauricular mass with episodes of tinnitus but intact hearing and balance. Physical examination showed a left-sided House Brackmann grade VI facial paralysis and a 5 x 4 x 3 cm soft, ill-defined, slightly movable, nontender, left infraauricular mass. Gadolinium-enhanced magnetic resonance imaging revealed a 5 cm heterogeneouslyenhancing lobulated mass centered within the deep lobe of the left parotid gland extending to the left mastoid, with facial nerve involvement. A diagnosis of a facial nerve tumor, probably a schwannoma, was entertained. Pure tone audiometry revealed normal hearing thresholds for both ears with dips at 6-8 KHz on the left. The patient underwent total parotidectomy withfacial nerve tumor resection via transmastoid approach, with simultaneous facial – hypoglossal nerve anastomosis reconstruction. Histopathologic findings confirmed the diagnosis of a schwannoma. Postoperative facial function was Grade VI. Hearing and hypoglossal nerve function were preserved.Conclusion: A progressive hemifacial paralysis of chronic duration with or without the presence of an infra-auricular mass should raise the suspicion of a facial nerve tumor. Gadolinium-enhanced magnetic resonance imaging is valuable since intraparotid facial nerve schwannomas are mostly diagnosed intraoperatively when the neoplasm and the nerve are exposed and determined to be contiguous. The clinician should be aware that not all parotid masses are salivary gland in origin.Keywords: intraparotid facial nerve schwannoma, facial nerve paralysis, parotid mass

False-Negative Magnetic Resonance Imaging in the Evaluation of Facial Nerve Paralysis

1996 ◽  
Vol 106 (2) ◽  
pp. 239-242 ◽  
Author(s):  
James E. Freije ◽  
Steven A. Harvey ◽  
Thomas J. Haberkamp
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
False Negative ◽  
Facial Nerve Paralysis ◽  
Resonance Imaging ◽  
Nerve Paralysis ◽  
Negative Magnetic Resonance Imaging

Gadolinium-Enhanced Magnetic Resonance Imaging in Experimental Facial Nerve Paralysis

1994 ◽  
pp. 349-352
Author(s):  
Y. Nakao ◽  
K. Matsumoto ◽  
M. Ochi ◽  
H. Kumagami
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Facial Nerve Paralysis ◽  
Resonance Imaging ◽  
Nerve Paralysis

scholarly journals Limitations of Magnetic Resonance Imaging in the Evaluation of Perineural Tumor Spread Causing Facial Nerve Paralysis

2000 ◽  
Vol 126 (4) ◽  
pp. 506 ◽  
Author(s):  
Markus Jungehuelsing ◽  
Christian Sittel ◽  
Roman Fischbach ◽  
Mathias Wagner ◽  
Eberhard Stennert
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Facial Nerve Paralysis ◽  
Resonance Imaging ◽  
Tumor Spread ◽  
Nerve Paralysis ◽  
Perineural Tumor Spread

Magnetic Resonance Imaging, Facial Nerve Schwannoma

2013 ◽  
pp. 1537-1540
Author(s):  
Nathaniel Fischer ◽  
Rebecca Cornelius
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Resonance Imaging ◽  
Facial Nerve Schwannoma

Glomus Vagale Tumor Resection: 2-Dimensional Operative Video

2020 ◽  
Vol 20 (1) ◽  
pp. E57-E57 ◽  
Author(s):  
Daniel M Heiferman ◽  
Esther A Cheng ◽  
Michael E Harkins ◽  
Matthew R Reynolds ◽  
Richard W Borrowdale ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hearing Loss ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Facial Paralysis ◽  
Infratemporal Fossa ◽  
Tumor Resection ◽  
Jugular Foramen ◽  
Jugular Bulb ◽  
Resonance Imaging

Abstract A 37-yr-old female with prior transient left facial paralysis presented with hearing loss, headaches, and resolved transient right facial paralysis. The neurological examination demonstrated normal facial movement, left hearing loss, and left vocal cord weakness. Magnetic resonance imaging demonstrated a >3 cm left paraganglioma traversing the jugular foramen. After obtaining informed consent from the patient, the tumor was embolized and then resected via a combined left postauricular infratemporal fossa and transcervical approach with cranial nerve monitoring. The ossicles were removed and the vertical segment of the facial nerve was skeletonized. The jugular bulb was identified in the hypotympanum and the petrous carotid artery was exposed. The digastric muscle was reflected inferiorly and the extratemporal facial nerve was identified. The stylomandibular ligament was transected to unlock the exposure to the infratemporal fossa. The external carotid branches were ligated. The vagus nerve and cervical sympathetic chain were infiltrated with tumor, requiring resection. The presigmoid dura and occluded jugular bulb were opened to complete the tumor resection, while preserving the medial wall. Despite anatomic preservation, the glossopharyngeal, accessory, and hypoglossal nerves were postoperatively weak and a facial paralysis recovered after 1 wk. Magnetic resonance imaging at 1 yr demonstrated a clean jugular foramen, although a thin rim of tumor remained around the petrous carotid.

Diagnosis of Facial Nerve Schwannoma by Magnetic Resonance Imaging Enhancement of the Geniculate Ganglion

2010 ◽  
Vol 67 (1) ◽  
Author(s):  
Andrew J. Fabiano ◽  
Robert J. Plunkett ◽  
Kevin J. Gibbons
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Geniculate Ganglion ◽  
Resonance Imaging ◽  
Facial Nerve Schwannoma

scholarly journals Transient blindness associated with mild encephalitis/encephalopathy with a reversible splenial lesion (MERS): a case report and review of literature

2020 ◽  
Vol 46 (1) ◽  
Author(s):  
Antonella Tuscano ◽  
Marisa Zoppo ◽  
Carlotta Canavese ◽  
Maurizio Cogoni ◽  
Carlo Scolfaro
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cerebrospinal Fluid ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Initial Symptom ◽  
Facial Nerve Paralysis ◽  
Resonance Imaging ◽  
Nerve Paralysis ◽  
Splenial Lesion ◽  
Cell Counts

Abstract Background Mild encephalitis/encephalopathy with a reversible splenial lesion (MERS) is a clinical-radiological syndrome that can be related to infectious and non-infectious conditions. The most prominent neurological symptoms are disturbance of consciousness, abnormal speech, delirious behavior, seizures, muscle weakness, ophthalmoplegia, facial nerve paralysis and headache. Here we report the case of a child with MERS presenting with the unusual symptom of bilateral transient blindness. Case presentation A 4-year-old female patient, with a history of fever, abdominal pain, loss of appetite and cough lasted for a few days, experienced 3 episodes of transient bilateral loss of vision with difficulty in walking. Her physical examination showed absence of focal neurological and meningeal irritation signs, although responsiveness was slightly impaired. The ophthalmologic evaluation, including a fundus oculi examination, was negative. The electroencephalogram showed slow activity in the temporo-occipital regions, more evident in the right hemisphere. A lumbar puncture was performed and cerebrospinal fluid analysis revealed normal glycorrhachia, cell counts, protein levels and IgG index. Magnetic resonance imaging of the brain showed a signal alteration in the splenium of the corpus callosum, without contrast enhancement. This finding was suggestive of a reversible cytotoxic lesion. Empiric antiviral treatment with acyclovir and intravenous dexamethasone was initiated. Polymerase chain reaction search for neurotropic viral nucleic acid sequences in the cerebrospinal fluid was negative, while a low number of HHV-6 DNA copies was detected in the blood. Electroencephalograms were repeated in the following days, showing a progressive normalization of the pattern. The child was discharged without symptoms after 10 days of treatment with oral corticosteroids. After 40 days, brain magnetic resonance imaging showed a complete normalization of the signal alteration in the splenium of the corpus callosum. Conclusion Transient blindness was reported as an initial symptom of MERS in a few children. To date, there is no evidence of effective treatment methods. Nonetheless, MERS diagnosis provides pediatricians with valuable prognostic information in order to reassure patients and their families about the good outcome of this disease.

Facial Nerve Schwannoma: Diagnosis Using Magnetic Resonance Imaging

2012 ◽  
pp. 227-232
Author(s):  
Andrew J. Fabiano ◽  
Robert J. Plunkett ◽  
Kevin J. Gibbons
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Resonance Imaging ◽  
Facial Nerve Schwannoma

Magnetic resonance imaging of facial nerve schwannoma

2009 ◽  
Vol 119 (12) ◽  
pp. 2428-2436 ◽  
Author(s):  
Andrew L. Thompson ◽  
Richard I. Aviv ◽  
Joseph M. Chen ◽  
Julian M. Nedzelski ◽  
Heng-Wai Yuen ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Facial Nerve ◽  
Resonance Imaging ◽  
Facial Nerve Schwannoma

742 Cost-effectiveness of Intraoperative Magnetic Resonance Imaging for Tumor Resection

Neurosurgery ◽  
2001 ◽  
Vol 49 (2) ◽  
pp. 518-519
Author(s):  
Walter A. Hall ◽  
Karen Kowalik ◽  
John Kucharczyk ◽  
Charles L. Truwit
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cost Effectiveness ◽  
Magnetic Resonance ◽  
Tumor Resection ◽  
Resonance Imaging ◽  
Intraoperative Magnetic Resonance Imaging
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