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24-year-old man with a recurrent episode of left-sided neck infection.

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Presentation on theme: "24-year-old man with a recurrent episode of left-sided neck infection."— Presentation transcript:

1 24-year-old man with a recurrent episode of left-sided neck infection.
24-year-old man with a recurrent episode of left-sided neck infection. The pyriform sinus fistula was diagnosed at hypopharyngoscopy. A, Contrast-enhanced CT scan shows soft-tissue swelling and enhancement around the left pyriform sinus apex (thin arrows). Note the normal appearance of the right pyriform sinus apex (thick arrow).B, CT scan shows diffuse soft-tissue swelling at the cricoid cartilage level. A small air density (arrow) is seen within the area of soft-tissue swelling.C, CT scan at the level of the thyroid gland shows diffuse swelling of the thyroid gland and perithyroid soft tissue. The affected thyroid gland shows a poorly defined margin, hypodensity, and a focus of air (arrow).D, Anteroposterior view from a barium swallow reveals the sinus tract (arrowheads) originating from the pyriform sinus apex and terminating in a focal collection near the left supraclavicular region. Sun-Won Park et al. AJNR Am J Neuroradiol 2000;21: ©2000 by American Society of Neuroradiology

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