Thyroid Carcinoma on the Side of the Absent Lobe in a Patient with Thyroid Hemiagenesis

Figure 1

Findings from ultrasonography and computed tomography. The right thyroid lobe and thyroid isthmus are present, while the left lobe of the thyroid is absent. A nodule measuring 0.7 × 0.8 × 1.4 cm is seen on the left side of the thyroid isthmus. On cervical ultrasonography, the periphery of the tumor is nonuniform, small calcifications are detected in the interior, and the posterior echo is attenuated. Arrows indicate the tumor. No cervical lymph node swelling is detected.

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