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Intramasseteric schwannoma in a child
Aki Nakamura1, Hiroyoshi Iguchi, Makoto Kusuki
1Department of Otolaryngology and Head and Neck Surgery, Osaka City University, Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan. aki-n@med.Osaka-cu.ac.jp
Auris, Nasus, Larynx
|January 25, 2006
Summary
This study reports a rare case of schwannoma in a 12-year-old boy's masseter muscle. Surgical removal was successful, highlighting the importance of considering this rare intramuscular tumor in diagnoses.
Area of Science:
- Oncology
- Neuropathology
- Surgical Oncology
Background:
- Schwannomas are typically found in peripheral nerves.
- Intramuscular schwannomas are exceptionally rare, posing diagnostic challenges.
Observation:
- A 12-year-old boy presented with a year-long history of a painless mass in his left cheek.
- Imaging studies (CT and MRI) localized the mass within the masseter muscle.
- Surgical excision revealed a solid, encapsulated, whitish mass.
Findings:
- Pathological examination confirmed the mass as a schwannoma, characterized by Antoni A and Antoni B tissue patterns.
- The tumor originated within the masseter muscle, an unusual location for schwannoma.
Implications:
- Definitive preoperative diagnosis of intramuscular schwannoma is difficult.
- Histological examination is crucial for diagnosis.
- Schwannoma must be included in the differential diagnosis of intramuscular tumors to prevent potential postoperative neurological complications.