Parapharyngeal ganglioneuroma of hypoglossal nerve in a 4 year old girl: a rare case report.

Parapharyngeal ganglioneuroma of hypoglossal nerve is very rare benign tumor arising from sympathetic nervous system producing mass and functional effect. We present a rare case in 4 year old girl with history of swelling and odynophagia in left side of neck. Extensive clinical, immunohistochemistry, and imaging of the swelling confirmed the diagnosis of ganglioneuroma after surgical excision.