Iatrogenic pharyngoesophageal perforations represent serious problems that are difficult to diagnose and manage. We report a case of pharyngoesophageal diverticulum formation due to perforation after external transcervical polypectomy. The patient was refered to our endoscopy unit by otorhinolaryngologist 9 days after a surgical cervical polyp resection. He was in stable general condition, without sepsis. A nonoperative management was attempted with percutaneous endoscopic gastrostomy placement and broad-spectrum antibiotics. Nine weeks later esophagography demonstrated a complete regression of both the perforation and the diverticulum.