Abstract
BACKGROUND: Middle ear adenomatous neuroendocrine tumors (MEANTs) are rare temporal bone tumors. This study evaluates its clinical behavior and therapy outcome.
METHOD: Retrospective case review in a tertiary referral center evaluating histopathology, immunohistochemistry, treatment, and outcome.
RESULTS: Nine patients were diagnosed with MEANT. One patient presented with locally invasive tumor and underwent extensive en-bloc tumor resection with adjuvant radiotherapy. Seven of eight patients with locally non-aggressive tumor confined to the tympanomastoid space underwent tumor resection. Two patients were disease-free, five presented recurrence, even after apparent successful surgery. All tumors showed neuroendocrine features. Histopathology and immunohistochemistry did not yield prognostic tumor characteristics.
CONCLUSION: MEANTs are rare tumors with uncertain biological behavior and subsequent unpredictable clinical course. The preferred treatment is complete surgical tumor resection. They have a high tendency for recurrence, irrespective of negative intermediary surgery. As of yet, there are no prognostic biomarkers, including histopathology and immunohistochemistry.
Original language | English |
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Pages (from-to) | 1848-1853 |
Number of pages | 6 |
Journal | Head & neck |
Volume | 43 |
Issue number | 6 |
Early online date | 19 Feb 2021 |
DOIs | |
Publication status | Published - 1 Jun 2021 |
Keywords
- adenoma
- carcinoid
- mastoid
- middle ear
- neuroendocrine tumor