Intrathyroid thyroglossal duct cyst simulating a thyroid nodule.
A case of intrathyroid thyroglossal duct cyst is reported. A 50-year-old woman presented with a right lateral neck mass that was clinically indistinguishable from a thyroid nodule. Ultrasound-guided fine-needle aspiration biopsy (US-FNAB) revealed normal-looking squamous cells. Right thyroid lobectomy was performed and microscopic examination revealed a cyst lined by squamous epithelium that was consistent with a thyroglossal duct cyst. The lesion was completely surrounded by normal thyroid tissue. Our experience suggests that intrathyroid thyroglossal duct cyst should be remembered in the differential diagnosis of a thyroid nodule. Detection of benign squamous cells by US-FNAB may be useful for ruling out the possibility of a cystic thyroid tumor.
The Second Department of Surgery, Hyogo College of Medicine, Japan.
T
T
Hatada
S
S
Ichii
K
K
Sagayama
H
H
Ishii
A
A
Sugihara
N
N
Terada
T
T
Yamamura
D001707:Biopsy, Needle / Q000379:methods; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D013955:Thyroglossal Cyst / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D013959:Thyroid Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D016606:Thyroid Nodule / Q000175:diagnosis; D014463:Ultrasonography