Final answer:
Treatment for symptomatic os odontoideum generally involves antihelminthic chemotherapy combined with corticosteroids to manage inflammation, and possibly surgical intervention for cyst removal.
Step-by-step explanation:
The treatment for symptomatic os odontoideum typically involves a combination of antihelminthic chemotherapy with drugs like albendazole and praziquantel, and may be accompanied by corticosteroids such as dexamethasone to manage the inflammatory response. The inflammatory reaction occurs as a result of antigens released during the destruction of Taenia cysticerci cysts by the medication. In cases where cysts are located in challenging areas, like the intraventricular spaces of the brain, surgical intervention might be required to remove them.