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Fig. 5 | BMC Medical Imaging

Fig. 5

From: Contrast-enhanced ultrasound improves the potency of fine-needle aspiration in thyroid nodules with high inadequate risk

Fig. 5

Representative ultrasonography and CEUS appearances of high FNA inadequate risky thyroid nodules. A A 6 mm × 5 mm × 11 mm suspicious degenerating nodule with macrocalcification in the isthmus of the thyroid gland from a 41 years old woman. The survival and inactive parts (white dashed line) of the solid nodule were clearly distinguished by CEUS. The cytological category was Bethesda class V. B A 25 mm × 20 mm × 29 mm predominantly cystic nodule in the left lobe of thyroid gland of a 36 years old female. Nearly all solid components were active under CEUS. The CEUS-FNA result was classified as Bethesda class II. C A predominantly cystic nodule in the right lobe of thyroid gland with size of 32 mm × 24 mm × 34 mm of a 27 years old woman. Small parts of inactive solid components were distinguished by CEUS (white dashed lines). Fine-needle puncturing to the active area resulting in a Bethesda Class II specimen

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