Fig 4.
ZTs protruding posteromedially and superiorly (left side) and posteromedially and inferiorly (right side) in both thyroid lobes of the same cadaver, and their shapes on axial CT images at different levels. Arrowheads and arrows indicate the ZT and the slit between the ZT and the thyroid lobe, respectively. PThG indicates parathyroid gland.
