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Progressive Trigeminal Hypoesthesia

Educational Objective
Based on this clinical scenario and the accompanying image, understand how to arrive at a correct diagnosis.
1 Credit CME

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Article Information

Corresponding Author: Alexandra T. Bourdillon, BS, Section of Otolaryngology, Department of Surgery, Yale School of Medicine, 333 Cedar St, New Haven, CT 06510 (alexandra.bourdillon@yale.edu).

Published Online: July 2, 2020. doi:10.1001/jamaoto.2020.1100

Conflict of Interest Disclosures: None reported.

Additional Contributions: We thank the patient for granting permission to publish this information.

References
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Propp  JM , McCarthy  BJ , Davis  FG , Preston-Martin  S .  Descriptive epidemiology of vestibular schwannomas.   Neuro Oncol. 2006;8(1):1-11. doi:10.1215/S1522851704001097PubMedGoogle ScholarCrossref
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Guthikonda  B , Theodosopoulos  PV , van Loveren  H , Tew  JM  Jr , Pensak  ML .  Evolution in the assessment and management of trigeminal schwannoma.   Laryngoscope. 2008;118(2):195-203. doi:10.1097/MLG.0b013e3181596091PubMedGoogle ScholarCrossref
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Raza  SM , Amine  MA , Anand  V , Schwartz  TH .  Endoscopic endonasal resection of trigeminal schwannomas.   Neurosurg Clin N Am. 2015;26(3):473-479. doi:10.1016/j.nec.2015.03.010PubMedGoogle ScholarCrossref
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Fukaya  R , Yoshida  K , Ohira  T , Kawase  T .  Trigeminal schwannomas: experience with 57 cases and a review of the literature.   Neurosurg Rev. 2010;34(2):159-171. doi:10.1007/s10143-010-0289-yPubMedGoogle ScholarCrossref
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Kano  H , Niranjan  A , Kondziolka  D , Flickinger  JC , Dade Lunsford  L .  Stereotactic radiosurgery for trigeminal schwannoma: tumor control and functional preservation.   J Neurosurg. 2009;110(3):553-558. doi:10.3171/2008.7.JNS0812PubMedGoogle ScholarCrossref
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Galloway  L , Palaniappan  N , Shone  G , Hayhurst  C .  Trigeminal neuropathy in vestibular schwannoma: a treatment algorithm to avoid long-term morbidity.   Acta Neurochir (Wien). 2018;160(4):681-688. doi:10.1007/s00701-017-3452-1PubMedGoogle ScholarCrossref
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Asthagiri  AR , Parry  DM , Butman  JA ,  et al.  Neurofibromatosis type 2.   Lancet. 2009;373(9679):1974-1986. doi:10.1016/S0140-6736(09)60259-2PubMedGoogle ScholarCrossref
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Belyaev  A , Usachev  D , Shimansky  V ,  et al.  Spontaneous transformation of vestibular schwannoma into malignant peripheral nerve sheath tumor.   Asian J Neurosurg. 2018;13(3):810-813. doi:10.4103/ajns.AJNS_251_16PubMedGoogle Scholar
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Seferis  C , Torrens  M , Paraskevopoulou  C , Psichidis  G .  Malignant transformation in vestibular schwannoma: report of a single case, literature search, and debate.   J Neurosurg. 2014;121(suppl):160-166. doi:10.3171/2014.7.GKS141311PubMedGoogle ScholarCrossref
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