The operated thyroid - case 775 (ultrasonographic picture 4)

The thyroid beds, transverse scan. There is a similar pattern in the left thyroid bed: the thyroid parenchyma is replaced by connective tissue marked with blue arrows. Note the dorsal inhomogeneous structure marked with  green arrows. This is the esophagus. The hypoechogenic mass marked with red arrows ventral to the echonormal connective tissue is the sternocleidomastoid muscle.