抄録
A 53-year-old female was referred to our clinic in January, 1993, because of hoarseness for 10 days. The left vocal cord was fixed in the paramedian position. Ultrasonography of the neck revealed a hypoechoic mass (12×12×11mm) in the left lobe of the thyroid gland. The mass was not palpable and was not seen in a CT scan of the neck. Fine needle aspiration cytology under ultrasonographic guidance showed a class V papillary adenocarcinoma. Subtotal thyroidectomy and left radical neck dissection were performed. The postoperative course has been uneventful, but the vocal cord paralysis was not improved.
It is emphasized that a thorough examination is essential to determine the cause of vocal cord paralysis rapidly.