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Eustachian tube teratoma: A case report.
Jin-Ye Li1, Li-Xin Sun1, Na Hu1
1Department of Radiology, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, Shandong Province, China.
World Journal of Clinical Cases
|January 24, 2022
Summary
Mature teratomas of the head and neck, especially in the temporal bone, are rare. Complete surgical removal of a eustachian tube teratoma offers an excellent prognosis with no recurrence.
Area of Science:
- Otolaryngology
- Head and Neck Surgery
- Pathology
Background:
- Mature teratomas are rare neoplasms comprising all three germ cell layers.
- Teratomas of the head and neck are uncommon, with those involving the temporal bone being particularly scarce.
Observation:
- A case of a 48-year-old male with a history of chronic otitis and prior surgeries presented with a middle ear mass.
- Imaging (CT and MRI) identified a eustachian tube teratoma.
- The teratoma was surgically excised via mastoidectomy.
Findings:
- Complete surgical resection of the eustachian tube teratoma was achieved.
- The patient remained disease-free at a 2-year follow-up, indicating no relapse.
Implications:
- Pre-operative computed tomography (CT) and magnetic resonance imaging (MRI) are crucial for diagnosing eustachian tube teratomas.
- Complete surgical resection is the recommended treatment, leading to favorable outcomes.

