An upward migratory parapharyngeal foreign body from hypopharynx

Affiliations

• ¹ Department of Otolaryngology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210000, Jiangsu Province, China.
• ² Department of Otolaryngology, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210000, Jiangsu Province, China. Electronic address: [email protected].