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RT Journal Article
SR Electronic
T1 The Emerging Echogenic Tract Sign of Pyriform Sinus Fistula: An Early Indicator in the Recovery Stage of Acute Suppurative Thyroiditis
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP E44
OP E46
DO 10.3174/ajnr.A2015
VO 32
IS 3
A1 Park, N.H.
A1 Park, H.J.
A1 Park, C.S.
A1 Kim, M.S.
A1 Park, S.I.
YR 2011
UL http://www.ajnr.org/content/32/3/E44.abstract
AB SUMMARY: AST is commonly associated with pyriform sinus−thyroid fistula in children. Radiologic findings of AST are documented in a few reports. We report a new sign we term the “emerging echogenic tract sign,” which reflects a patent air-containing pyriform sinus−thyroid fistula on follow-up US. Recognition of this sign is an important finding suggesting an associated pyriform sinus−thyroid fistula in a patient with AST and also suggesting the adequate timing of barium esophagography to confirm the fistula. ASTacute suppurative thyroiditisUSsonography