A 23 months-old
girl visited the
hospital because of
fever and left
neck mass. She was diagnosed as
acute suppurative thyroiditis with
piriform sinus fistula.
Thyroid sonography showed perithyroidal
abscess formation and
thyroid scan showed decreased uptake of Tc-99m pertechnate of both
thyroid glands.
Magnetic resonance imaging of
neck showed
abscess cavity extending to the swollen left
thyroid gland. And there was tiny
fistula between
thyroid and
piriform sinus in the
barium esophagogram.
Streptococcus gordonii was isolated on
needle aspiration
culture. We
report a case of
piriform sinus fistula of the
neck complicated with
suppurative thyroiditis. The
fistula was treated with chemocauterization using
trichloroacetic acid.