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Computed tomography images. Axial Computed Tomography images at the level of the thoracic inlet, show two adjacent cystic lesions, one in the anterior lower neck (A) measuring 3.8×2.3×5.1 cm and one in the anterior mediastinum on the left (B), measuring 2.7×2.2×1.8 cm. On coronal reconstruction (C) the neck lesion is shown as a lobular cystic mass with smooth enhancing rim. There is a speck of calcification at the cyst's wall (A, arrow).
