Neurogenic tumor (includes nerve sheath tumor and neurofibroma)
Definitions
Benign tumor arising from intraparotid facial nerve Schwann cells
Associated Syndromes
Neurofibromatosis type 2
Commonly bilateral and with nerve sheath tumors at other sites of body
IMAGING
General Features
Ultrasonographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Lee DW et al: Diagnosis and surgical outcomes of intraparotid facial nerve schwannoma showing normal facial nerve function. Int J Oral Maxillofac Surg. 42(7):874-9, 2013
Gross BC et al: The intraparotid facial nerve schwannoma: a diagnostic and management conundrum. Am J Otolaryngol. 33(5):497-504, 2012
Ma Q et al: Diagnosis and management of intraparotid facial nerve schwannoma. J Craniomaxillofac Surg. 38(4):271-3, 2010
Tanna N et al: Intraparotid facial nerve schwannoma: clinician beware. Ear Nose Throat J. 88(8):E18-20, 2009
Salemis NS et al: Large intraparotid facial nerve schwannoma: case report and review of the literature. Int J Oral Maxillofac Surg. 37(7):679-81, 2008
Lee JD et al: Management of facial nerve schwannoma in patients with favorable facial function. Laryngoscope. 117(6):1063-8, 2007
Wippold FJ 2nd et al: Neuropathology for the neuroradiologist: Antoni A and Antoni B tissue patterns. AJNR Am J Neuroradiol. 28(9):1633-8, 2007
Shimizu K et al: Intraparotid facial nerve schwannoma: a report of five cases and an analysis of MR imaging results. AJNR Am J Neuroradiol. 26(6):1328-30, 2005
Assad L et al: Fine-needle aspiration of parotid gland schwannomas mimicking pleomorphic adenoma: a report of two cases. Diagn Cytopathol. 30(1):39-40, 2004
Beaman FD et al: Schwannoma: radiologic-pathologic correlation. Radiographics. 24(5):1477-81, 2004
Caughey RJ et al: Intraparotid facial nerve schwannoma: diagnosis and management. Otolaryngol Head Neck Surg. 130(5):586-92, 2004
Jee WH et al: Extraaxial neurofibromas versus neurilemmomas: discrimination with MRI. AJR Am J Roentgenol. 183(3):629-33, 2004
Gritzmann N et al: Sonography of the salivary glands. Eur Radiol. 13(5):964-75, 2003
Jaehne M et al: Clinical aspects and therapy of extratemporal facial neurinoma. HNO. 49(4):264-9, 2001
Chong KW et al: Management of intraparotid facial nerve schwannomas. Aust N Z J Surg. 70(10):732-4, 2000
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Imaging
Top Differential Diagnoses
Diagnostic Checklist
TERMINOLOGY
Synonyms
Nerve sheath tumor
Neurilemmoma
Neurogenic tumor (includes nerve sheath tumor and neurofibroma)
Definitions
Benign tumor arising from intraparotid facial nerve Schwann cells
Associated Syndromes
Neurofibromatosis type 2
Commonly bilateral and with nerve sheath tumors at other sites of body
IMAGING
General Features
Ultrasonographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Image Interpretation Pearls
Selected References
Lee DW et al: Diagnosis and surgical outcomes of intraparotid facial nerve schwannoma showing normal facial nerve function. Int J Oral Maxillofac Surg. 42(7):874-9, 2013
Gross BC et al: The intraparotid facial nerve schwannoma: a diagnostic and management conundrum. Am J Otolaryngol. 33(5):497-504, 2012
Ma Q et al: Diagnosis and management of intraparotid facial nerve schwannoma. J Craniomaxillofac Surg. 38(4):271-3, 2010
Tanna N et al: Intraparotid facial nerve schwannoma: clinician beware. Ear Nose Throat J. 88(8):E18-20, 2009
Salemis NS et al: Large intraparotid facial nerve schwannoma: case report and review of the literature. Int J Oral Maxillofac Surg. 37(7):679-81, 2008
Lee JD et al: Management of facial nerve schwannoma in patients with favorable facial function. Laryngoscope. 117(6):1063-8, 2007
Wippold FJ 2nd et al: Neuropathology for the neuroradiologist: Antoni A and Antoni B tissue patterns. AJNR Am J Neuroradiol. 28(9):1633-8, 2007
Shimizu K et al: Intraparotid facial nerve schwannoma: a report of five cases and an analysis of MR imaging results. AJNR Am J Neuroradiol. 26(6):1328-30, 2005
Assad L et al: Fine-needle aspiration of parotid gland schwannomas mimicking pleomorphic adenoma: a report of two cases. Diagn Cytopathol. 30(1):39-40, 2004
Beaman FD et al: Schwannoma: radiologic-pathologic correlation. Radiographics. 24(5):1477-81, 2004
Caughey RJ et al: Intraparotid facial nerve schwannoma: diagnosis and management. Otolaryngol Head Neck Surg. 130(5):586-92, 2004
Jee WH et al: Extraaxial neurofibromas versus neurilemmomas: discrimination with MRI. AJR Am J Roentgenol. 183(3):629-33, 2004
Gritzmann N et al: Sonography of the salivary glands. Eur Radiol. 13(5):964-75, 2003
Jaehne M et al: Clinical aspects and therapy of extratemporal facial neurinoma. HNO. 49(4):264-9, 2001
Chong KW et al: Management of intraparotid facial nerve schwannomas. Aust N Z J Surg. 70(10):732-4, 2000
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