Thyroid-Bed Schwannoma Mimicking a Thyroid Neoplasm: A Challenging Diagnosis: Report of a Case and Literature Review

Background: Schwannomas, also called neurinomas, are rare benign tumors of the neural cells that can develop from the sheaths of nervous structures of several districts, although the most frequent sites are the cranial nerves (25%–45%). Rarely, cases show neck schwannomas in the thyroid parenchyma,...

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Published in:Medicina (Kaunas, Lithuania) Lithuania), 2022-09, Vol.58 (10), p.1345
Main Authors: Gambardella, Claudio, Docimo, Ludovico, Candela, Giancarlo, Cozzolino, Giovanni, Mongardini, Federico, Serilli, Francesca, Nesta, Giusiana, Filograna Pignatelli, Marcello, Ferrandes, Sonia, Gambardella, Antonio, Docimo, Giovanni
Format: Article
Language:English
Subjects:
Cancer
Care and treatment
Comparative analysis
Diagnosis
Diagnosis, Differential
Head and neck tumors
Literature reviews
Magnetic resonance imaging
Medical imaging
Methods
neck neoplasm
neck schwannoma
Neuroendocrine tumors
Pathology
Review
Systematic review
Thyroid cancer
Thyroid gland
thyroid mass
thyroid-bed lesion
Tomography
total thyroidectomy
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Summary:Background: Schwannomas, also called neurinomas, are rare benign tumors of the neural cells that can develop from the sheaths of nervous structures of several districts, although the most frequent sites are the cranial nerves (25%–45%). Rarely, cases show neck schwannomas in the thyroid parenchyma, while the cases of thyroid-bed schwannomas mimicking a thyroid-gland lesions are anecdotal. Methods: We report the case of a 70-year-old man with a preoperative-imaging diagnosis of a thyroid neoplasm, confirmed as Thyr 4 by fine-needle cytology. Results: During surgery, an extra-thyroidal lesion was discovered, determined to be a neck schwannoma through definitive pathology. A literature review of cases of thyroid-bed-lesion schwannomas misinterpreted as thyroid neoplasms was carried out. Conclusions: In the case of suspicious extra-thyroidal lesions, we advocate for a close routine cooperation between the cytologist, the radiologist, and the surgeon in the attempt to reach an accurate preoperative diagnosis.
ISSN:1648-9144
1010-660X
1648-9144
DOI:10.3390/medicina58101345