Vol.98 No.5 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 98 No. 5 May 2005
Papillary Carcinoma Arising from the Lateral
Branch Remnant of the Thyroglossal Duct
Ryusuke Hori
(Nisi-Kobe Medical Center)
Tomoyuki Haji
(Kurashiki Central Hospital)
An 81-year-old man visited our hospital for a lateral neck mass outside the thyroid cartilage. Fine needle aspiration of the neck mass showed class V, papillary carcinoma, but thyroid class I. Total thyroidectomy and D2a neck dissection were performed, and histological diagnosis revealed papillary carcinoma of the neck mass, but, no tumor of the thyroid. In this case, the lateral neck mass was clinically diagnosed as primary papillary carcinoma arising from the lateral branch remnant of the thyroglossal duct.
Key words : papillary carcinoma, lateral branch remnant, thyroglossal duct