Extremely rare, benign tumor of differentiated Schwann cells surrounding CNXII
IMAGING
General Features
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Reporting Tips
Selected References
Di Pascuale I et al: Hypoglossal nerve schwannoma: case report and literature review. World Neurosurg. 135:205-8, 2020
Bindal S et al: Hypoglossal schwannomas: a systematic review of the literature. J Clin Neurosci. 62:162-73, 2019
Ram H et al: Hypoglossal schwannoma of parapharyngeal space: an unusual case report. J Maxillofac Oral Surg. 14(Suppl 1):73-6, 2015
Nonaka Y et al: Microsurgical management of hypoglossal schwannomas over 3 decades: a modified grading scale to guide surgical approach. Neurosurgery. 69(2 Suppl Operative):ons121-40; discussion ons140, 2011
Edizer DT et al: Hypoglossal schwannoma presenting only with headache. J Craniofac Surg. 21(1):261-2, 2010
Rachinger J et al: Dumbbell-shaped hypoglossal schwannoma. A case report. Magn Reson Imaging. 21(2):155-8, 2003
Sarma S et al: Nonvestibular schwannomas of the brain: a 7-year experience. Neurosurgery. 50(3):437-48; discussion 438-9, 2002
Ogawa T et al: A multifocal neurinoma of the hypoglossal nerve with motor paralysis confirmed by electromyography. Int J Oral Maxillofac Surg. 30(2):176-8, 2001
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Pathology
Clinical Issues
TERMINOLOGY
Abbreviations
Hypoglossal nerve schwannoma (HNS)
Synonyms
Hypoglossal neurilemmoma, hypoglossal neuroma
Definitions
Extremely rare, benign tumor of differentiated Schwann cells surrounding CNXII
IMAGING
General Features
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Reporting Tips
Selected References
Di Pascuale I et al: Hypoglossal nerve schwannoma: case report and literature review. World Neurosurg. 135:205-8, 2020
Bindal S et al: Hypoglossal schwannomas: a systematic review of the literature. J Clin Neurosci. 62:162-73, 2019
Ram H et al: Hypoglossal schwannoma of parapharyngeal space: an unusual case report. J Maxillofac Oral Surg. 14(Suppl 1):73-6, 2015
Nonaka Y et al: Microsurgical management of hypoglossal schwannomas over 3 decades: a modified grading scale to guide surgical approach. Neurosurgery. 69(2 Suppl Operative):ons121-40; discussion ons140, 2011
Edizer DT et al: Hypoglossal schwannoma presenting only with headache. J Craniofac Surg. 21(1):261-2, 2010
Rachinger J et al: Dumbbell-shaped hypoglossal schwannoma. A case report. Magn Reson Imaging. 21(2):155-8, 2003
Sarma S et al: Nonvestibular schwannomas of the brain: a 7-year experience. Neurosurgery. 50(3):437-48; discussion 438-9, 2002
Ogawa T et al: A multifocal neurinoma of the hypoglossal nerve with motor paralysis confirmed by electromyography. Int J Oral Maxillofac Surg. 30(2):176-8, 2001
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