Core needle biopsy for thyroid nodules assessment-a new horizon?

Figure 1 Ultrasonography-guided core-needle biopsy of the thyroid gland. A: Assessment of the size of the mass; B: Assessment in the Doppler mode; C: Marking the optimal trajectory for core-needle biopsy (CNB); D: Calculation of the distance till the mass and major vessels; E: Control of the needle along its length; F: Control during the biopsy; G: Assessment of the mass after CNB; H: Assessment of the node in Doppler mode after CNB.

Figure 2  Core-needle biopsy of a thyroid node may be marginal 2 or through the node 1.