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Extracranial Trigeminal Schwannomas: A Retrospective Analysis
Aviral Agrawal1, Virendra Singh2, Amrish Bhagol2
1Department of Oral and Maxillofacial Surgery, Kalpana Chawala Government Medical College, Karnal, Haryana India.
Journal of Maxillofacial and Oral Surgery
|April 26, 2017
Summary
Extracranial trigeminal schwannomas, rare tumors, can present as asymptomatic cheek swelling. Diagnosis is aided by MRI, and meticulous surgery can preserve neural function.
Area of Science:
- Neurosurgery
- Oncology
- Radiology
Background:
- Schwannomas are nerve sheath tumors, with trigeminal schwannomas being rare, particularly in the extracranial location.
- Extracranial trigeminal schwannomas can present insidiously, often mimicking benign conditions.
Purpose of the Study:
- To analyze the clinic-radiological features and treatment outcomes of extracranial trigeminal schwannomas.
- To highlight the diagnostic utility of MRI and the importance of surgical preservation of neural function.
Main Methods:
- Retrospective review of medical records and radiographs from January 2011 to December 2013.
- Inclusion criteria focused on extracranial trigeminal schwannomas, excluding other neurogenic tumors.
- Analysis of patient demographics, tumor site, clinical presentation, radiographic findings, histological variants, treatment, and complications.
Main Results:
- Five male patients aged 16-56 years met the inclusion criteria.
- All identified schwannomas originated from terminal branches of the trigeminal nerve.
- The study identified key clinic-radiological features and treatment outcomes.
Conclusions:
- Long-standing asymptomatic cheek swelling should prompt consideration of trigeminal schwannomas.
- Magnetic Resonance Imaging (MRI) can aid in diagnosis, complementing histological examination.
- Meticulous surgical techniques are crucial for preserving neural function.

