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Thyroglossal Duct Cysts: Sonographic Appearances in Adults

Anil T. AhujaGo,a, Ann D. Kinga, Walter Kinga and Con Metrewelia

a From the Departments of Diagnostic Radiology and Organ Imaging (A.T.A., A.D.K.), and Surgery (W.K.), Chinese University of Hong Kong, Prince of Wales Hospital, Shatin N.T, Hong Kong.



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  		FIG 1. Longitudinal sonogram of a predominantly anechoic TDC with internal debris and thick walls (solid white arrows) below the level of the hyoid bone (black arrow). Open arrow indicates the head end of the patient.

FIG 2. Longitudinal sonogram of an anechoic, multiloculated TDC (solid white arrows) with extension posterior to the hyoid bone (black arrow). Open arrow indicates the head end of the patient.



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  		FIG 3. Transverse sonogram of a uniformly echogenic, pseudosolid appearance of a TDC (large arrows). Note, however, the posterior enhancement (small arrows), suggesting its cystic nature.

FIG 4. Longitudinal sonogram of a TDC shows a mixed echo pattern with internal debris (arrowhead) and septa (solid arrows). Note its relationship to the hyoid bone (H) and the intense posterior enhancement. Open arrow indicates the head end of the patient.



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  		FIG 5. Longitudinal sonogram of a TDC shows thick septa (solid arrows). Note its relationship to the hyoid bone (H) and the intense posterior enhancement. Open arrow indicates the head end of the patient





Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X