Female 17 months old with right thyroid mass present for at least 4 months and slowly growing. Evaluate for goiter or thyroglossal duct cyst.EXAMINATION: Sonogram thyroid 4/14/2016 RIGHT LOBE MEASUREMENTS: Not accurately measurableLEFT LOBE MEASUREMENTS: 2.0 x 0.6 x 1.2 cmISTHMUS MEASUREMENTS: 4 mmRIGHT LOBE: There is a 4.2 x 2.4 x 3.1 cm hypoechoic multiloculated structure filled with echogenic debris which appears to be surrounded by a rim of thyroid tissue. It is noncompressible and has no flow on color Doppler images.LEFT LOBE: Normal echogenicity, no discrete nodule.ISTHMUS: Normal echogenicity, no discrete nodule.PARATHYROID GLANDS: Not identified.LYMPH NODES: Normal appearing cervical lymph nodes bilaterally.OTHER: No significant abnormality.
The multiloculated lesion appears to be within the right thyroid lobe. Differential considerations include lymphatic malformation, branchial cleft cyst remnant and thymic cyst. It is not typical for thyroglossal duct cyst and unlikely an abscess. 