A Case of Pyriform Sinus Fistula Infection with Double Tracts

Figure 1

(a) A computed tomographic scan showing a deep neck infection that was located between the common carotid artery and hypopharynx. (b) The infection reached the thyroid beyond the capsule and occurred with acute suppurative thyroiditis. (c) Barium swallow examination shows obvious leakage of barium from the left pyriform sinus, which indicated the presence of a fistula (arrows). Only one fistula was identified in this test.

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(b)

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