Misdiagnosed pyriform sinus fistula revealed by iterative neck abscesses: A case report and review of the literature.

The pyriform sinus fistula is a rare condition described as an epithelialized tract connecting the skin of the neck to the foregut, and may result in cervical cysts and iterative abscesses misleading the diagnosis. The clinical and radiological examinations are all useful. Surgery stands as one of the most effective therapeutic options consisting on the total excision on the eventual cyst, and the fistula that is followed to its inner opening on the pyriform sinus.