case_images: PMC4293554_01
case_images: (A) Neck ultrasonography shows a heterogeneously isoechoic neck mass in the subhyoid region. (B) 99mTc pertechnetate thyroid scan shows two focal areas of uptake in the sublingual (upper arrow) and subhyoid regions (lower arrow). (C) Sagittal computed tomography of the neck reveals two heterogeneous enhancing masses, one in the sublingual region (upper arrow) and the other in the subhyoid region (lower arrow).
case_images: kjim-30-129-g001.jpg
case_images: PMC4293554_01_kjim-30-129-g001.jpg
case_images: F1
case_images: Ultrasonography showed a heterogeneously isoechoic mass (2.23 x 1.18 cm) in the subhyoid region, while a thyroid gland was not seen in the normal position (Fig. 1A). A 99mTc-pertechnetate scan demonstrated two distinct focal areas of radiotracer uptake in the sublingual and subhyoid regions, without uptake in the region of the normal thyroid gland (Fig. 1B). Neck computed tomography (CT) revealed two heterogeneous hyperdense enhancing masses, one in the sublingual region and the other in the subhyoid region (Fig. 1C).