Ectopic intrathyroidal thymoma: a case report and review.
Ectopic intrathyroidal thymomas are an exceedingly rare clinical entity that can be challenging to diagnose. This report describes a 39-year-old Japanese woman who presented with prominent left-sided thyroid enlargement that was thought to be a dominant thyroid nodule by ultrasound. Two fine-needle aspiration biopsies showed an atypical lymphoid proliferation that was suspicious for although not diagnostic of a low-grade lymphoma. A diagnosis of ectopic intrathyroidal thymoma was made only after appropriate histopathologic assessment of the surgical specimen.
Division of Nuclear Medicine, Stanford University School of Medicine, Stanford, California 94305-5281, USA.
Jason B
JB
Cohen
Megan
M
Troxell
Christina S
CS
Kong
I Ross
IR
McDougall
D000328:Adult; D044963:Biopsy, Fine-Needle; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D013945:Thymoma / Q000473:pathology* / Q000601:surgery; D013953:Thymus Neoplasms / Q000473:pathology* / Q000601:surgery; D016606:Thyroid Nodule / Q000473:pathology