Branchial pouch sinus tract from the piriform fossa causing acute suppurative thyroiditis, neck abscess, or both: CT appearance and the use of air as a contrast agent.
AJR Am J Roentgenol. 1996 Dec;167(6):1569-72. doi: 10.2214/ajr.167.6.8956599.
AJR Am J Roentgenol. 1996.
PMID: 8956599