Cervical neuroblastoma.

Cervical neuroblastoma is relatively uncommon. It present, most often as a firm mass in the lateral neck. Primary neuroblastomas of the neck usually arise in the cervical sympathetic ganglia. They are the sixth most common head and neck extracranial neoplasms. Neuroblastoma is the most common malignancy in children under 1 year of age. No known cause of Neuroblastoma has been reported.