[Congenital pyriform fistula with acute suppurative thyroiditis as the initial presentation].

To summarize the clinical characteristics of congenital pyriform fistula with acute suppurative thyroiditis as the initial presentation. A total of 71 patients with congenital pyriform sinus fistula were treated, of which 33 cases had acute suppurative thyroiditis as the first symptom. For the patients with congenital pyriform sinus fistula who have acute suppurative thyroiditis as the first symptom, infection should be controlled first. Full drainage should be done when necessary, and the lesion should be completely excised during the stable period. All the patients were followed up for 6 months to 216 months. No recurrence was found during follow-up. For patients with acute suppurative thyroiditis, the possibility of congenital pyriform sinus fistula should be considered.If the diagnosis of congenital pyriform sinus fistula is clear,the lesion should be completely resected by surgery. .