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Intramasseteric dermoid cyst: Imaging clues to a rare masticator space lesion
Mohamed Bouallou1,2,3, Issam Berrajaa1,2,3, Achraf Amine Sbai1,2,3
1Department of Otorhinolaryngology, Mohammed VI University Hospital, Oujda 60000, Morocco.
Radiology Case Reports
|August 8, 2026
Summary
A rare dermoid cyst in the masseter muscle caused painful cheek swelling and trismus. Imaging and surgery confirmed the benign lesion, highlighting the importance of diagnostic imaging for masticator space cysts.
Area of Science:
- Head and Neck Surgery
- Dermatology
- Radiology
Background:
- Dermoid cysts are benign developmental lesions originating from ectodermal inclusions.
- Intramuscular head and neck dermoid cysts are uncommon, with masseter muscle localization being exceptionally rare.
