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Case report
Intramasseteric Schwannoma Mimicking a Parotid Tumor: Case Report and Review of Literature
Cheng Wang
Sun Yat-sen University
Corresponding Author
ORCiD: https://orcid.org/0000-0001-8155-5064
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This work is licensed under a CC BY 4.0 License. Read Full License
Background
Schwannoma is a benign neoplasm originating from Schwan cells of peripheral nerves as well as the cranial and spinal roots. It often occurred in head and neck region involving cranial nerves VII, VIII, and XII. However, schwannoma located in intramasseteric region is extremely uncommon. There have been only ten reported cases documented in English literatures to date.
Case presentation
Here, we report a rare intramasseteric schwannoma case, who presented a painless mass in the left cheek with 2 years evolution and was treated with surgical excision through trans-parotid approach. An uneventful recovery without salivary fistula or facial paralysis was recorded after the surgery. Due to its rarity and clinical significance, we also review intramasseteric schwannoma regarding its clinical characteristics and surgical managements.
Conclusion
In a word, intramasseteric schwannoma is a benign lesion with favorable prognosis. MRI (magnetic resonance imaging) scanning is recommended for evaluation and differential diagnoses for this condition. Surgical excision of the tumor without parotidectomy is considered to be effective.
Keywords
Schwannoma, Masseter muscle, Neurilemmoma, Head and neck region
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This is a preprint. It has not completed peer review.
Case report
Intramasseteric Schwannoma Mimicking a Parotid Tumor: Case Report and Review of Literature
Cheng Wang
Sun Yat-sen University
Corresponding Author
ORCiD: https://orcid.org/0000-0001-8155-5064
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 10 Aug, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Surgery
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
Schwannoma is a benign neoplasm originating from Schwan cells of peripheral nerves as well as the cranial and spinal roots. It often occurred in head and neck region involving cranial nerves VII, VIII, and XII. However, schwannoma located in intramasseteric region is extremely uncommon. There have been only ten reported cases documented in English literatures to date.
Case presentation
Here, we report a rare intramasseteric schwannoma case, who presented a painless mass in the left cheek with 2 years evolution and was treated with surgical excision through trans-parotid approach. An uneventful recovery without salivary fistula or facial paralysis was recorded after the surgery. Due to its rarity and clinical significance, we also review intramasseteric schwannoma regarding its clinical characteristics and surgical managements.
Conclusion
In a word, intramasseteric schwannoma is a benign lesion with favorable prognosis. MRI (magnetic resonance imaging) scanning is recommended for evaluation and differential diagnoses for this condition. Surgical excision of the tumor without parotidectomy is considered to be effective.
Figure 1
Figure 2