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ID 48691
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Author
Shien, Kazuhiko
Shien, Tadahiko ORCID Kakenhi publons
Ikeda, Hirokuni
Abstract
Ectopic thymoma is considered to arise from ectopic thymus tissue deposited as a result of the abnormal mislocalization of thymus tissue during the embryonic stage. An 86-year-old man visited our hospital with chief complaints of hoarseness and a mass in his anterior neck. A preoperative needle biopsy of the mass did not yield a definitive diagnosis. A positron emission tomography (PET) study revealed heterogeneous accumulation of 18F-fluorodeoxyglucose (FDG) in the tumor. The tumor, affecting the left sternocleidomastoid muscle, the recurrent laryngeal nerve, the internal carotid vein, and the brachiocephalic vein, was resected using a combination of a collar incision in the neck and a median incision in the sternum. Immunohistochemically, the tumor was diagnosed as an ectopic thymoma of the neck. To date, only a few cases of ectopic thymoma presenting with FDG accumulation have been reported. Our experience indicates that ectopic thymoma should be kept in mind during the differential diagnosis of neck tumors with FDG accumulation appearing on PET images.
Keywords
ectopic thymoma
thyroid tumor
positron emission tomography (PET)
Amo Type
Case Report
Published Date
2012-08
Publication Title
Acta Medica Okayama
Volume
volume66
Issue
issue4
Publisher
Okayama University Medical School
Start Page
357
End Page
361
ISSN
0386-300X
NCID
AA00508441
Content Type
Journal Article
language
英語
Copyright Holders
CopyrightⒸ 2012 by Okayama University Medical School
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publisher
Refereed
True
PubMed ID