Sonographic diagnosis of an unusual cervical foreign body that migrated through a pyriform sinus fistula

Foreign body ingestion is common in the pediatric population. We report a case of ingestion of sunflower seeds that migrated in the left neck through a pyriform sinus fistula, ultrasound plays an important role in preoperative diagnosis and is a useful tool for diagnosing both pyriform sinus fistulas and radiolucent foreign bodies.

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