Fig. 2

Intraoperative pictures during the surgical exploration. A Preparation of the parathyroidal space revealed local inflammation. The right thyroid lobe presented with suppurative tissue alterations and was adherent to esophageal wall and thyropharyngeal muscle. B The fish bone was identified perforating the esophageal wall (arrow*) and penetrations the right thyroid lobe dorsally (arrow **). C, D The fish bone was removed carefully