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Figure 2b. (a) Transverse B-mode sonogram, (b) real-time elastogram, and (c) off-line processed elastogram obtained in 31-year-old man show a cyst (arrowheads) in the central part of the right lobe of the thyroid gland. In b, the cyst is clearly visible as a very dark lesion with a distinct, moderately irregular margin. The off-line processed elastogram (c) is characterized by extensive amounts of decorrelation noise in the central area of the lesion due to excessive movements of cyst content under compression. In a–c, arrows mark anterior and posterior borders of thyroid gland. C = carotid artery, Tr = trachea.
