Recurrent cervical abscess due to piriform sinus fistula.

A case of recurrent abscess on the left anterior neck due to a left piriform sinus fistula is presented. It is known that a piriform sinus fistula may cause acute suppurative thyroiditis, and also that it induces the recurrent anterior cervical abscess described in this case. Here, we suggest that barium swallow is an important aid to diagnosis cases of recurrent cervical abscess.