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).
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.
Anil T. Ahuja et al. AJNR Am J Neuroradiol 1999;20:
©1999 by American Society of Neuroradiology