Abstract
AbstractOBJECTIVE: The case of a thirteen-year-old woman showing an atypical teratoid/rhabdoid tumor (AT/RT) primarily occurred in the internal auditory canal was presented. Results: There was a delay in diagnosing AT/RT because of the first histological diagnosis of benign neurofibroma. If we had changed the surgical approach to one which was middle cranial fossa-based or translabyrinthine in the second or third operation, we might have reached an earlier final diagnosis. Although we faced a dilemma about whether to sacrifice facial nerve function for dissection of the tumor, we should have considered the possibility of malignancy at an earlier stage. CONCLUSION: This is a case report of AT/RT in the internal auditory canal presenting with progressive hearing loss as the initial symptom. Although no previous reports of AT/RT primarily occurring in the internal auditory canal are existent, this rare form of the disease should be considered in future evaluations as a differential diagnosis for internal auditory canal tumor.
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