Fig. 1From: Computed tomography findings of thyroid hemiagenesis: differentiation from hemithyroidectomyThe method of measurement for the angle of the medial end of remnant thyroid gland. The location of the medial end of remnant thyroid gland is expressed as the angle of the medial end (C), which is defined as the angle between a vertical line drawn on the anterior tip of the trachea (A) and a line connecting the center of trachea to medial end of remnant thyroid gland (B)Back to article page