(a)
(b)
Figure 1: (a) EUS examination of the thyroid revealed a hypoechoic, round, and well-demarcated mass that measured 26.9 mm × 21.9 mm in the right lobe. (b) Under echoendosonographic guidance, FNA with a 25-gauge needle (Expect EUS-FNA 25 G needle; Boston Scientific, Menomonie, WI, USA) was performed successfully.