Vol.102 No.12 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 102 No. 12 December 2009
A Case of Right Piriform Sinus Fistula
Yuki Kobayashi
(Kushiro Rosai Hospital, Asahikawa Medical College)
Mitsuru Asanome, Kazuhiko Hokunan and Chikako Yoshida
(Kushiro Rosai Hospital)
Nobuyuki Bandoh and Yasuaki Harabuchi
(Asahikawa Medical College)
We report a 14-year-old male with acute suppurative thyroiditis originating in a right piriform sinus fistula. After he manifested anterior cervical swelling, he was found in computeded tomography and ultrasonography to have an abscess in the right thyroid lobe. He was treated with surgical drainage and antibiotics. Three months after treatment, pharyngoesophagography showed right piriform sinus fistula, which was resected cervically. No recurrence of acute suppurative thyroiditis has been seen in the 30 months since surgery.
Although right side piriform sinus fistula is relatively rare, it should be considered among the causes of acute suppurative thyroiditis or cervical abscess on the right side.
Key words :piriform sinus fistula, acute suppurative thyroiditis, cervical abscess