下咽頭梨状窩瘻に伴う急性化膿性甲状腺炎の3例
2001 年 22 巻 2 号 p. 34-37
詳細
2001 年 22 巻 2 号 p. 34-37
We report three cases of acute suppurative thyroiditis arising from a piriform sinus fistula. The patients were a 14-year-old boy, a 14-year-old girl and a 6-year-old girl. They had left anterior neck pain and inflammatory swelling in the region of the left lobe of the thyroid gland, with or without fever. Laboratory studies revealed mild to moderate inflammation and normal thyroid function. During acute infection, the involvement of the left thyroid lobe was verified by ultrasonography. Barium swallow examination was the diagnostic finding indicating that all 3 patients had a left-sided fistula. These 3 patients underwent an operation (2 cases with fistulectomy, one with ligation of a fistula) and showed a good postoperative course without recurrence. Piriform sinus fistula is the most common underlying abnormality in patients with acute suppurative thyroiditis. A better understanding of this rare branchial anomaly is of clinical importance. Ultrasonography is useful for the diagnosis of acute suppurative thyroiditis and piriform sinus fistula.
