TABLE 1:

Summary of the six cases with arteriovenous fistulas at the cervicomedullary junction

Patient No./Age (y)/Sex	Symptom	Feeder	SDAVF/SPAVF	Fistula Point	Drainer	Related Sinus	Treatment	Outcome
1/61/M	SAH	Meningeal artery	SDAVF	Jugular foramen	Anteromedial medullary vein	Superior petrosal sinus–cavernous sinus	Drainer occlusion	GR
2/56/M	SAH	Meningeal artery	SDAVF	Jugular foramen	Anterior spinal vein	Cavernous sinus	Drainer occlusion	GR
					Petrosal vein
3/75/M	SAH	Ascending pharyngeal artery	SDAVF	Jugular foramen	Pontomedullary vein	Inferior petrosal sinus	Drainer occlusion	MD
					Inferior petrosal vein
4/68/M	SAH	Meningeal artery	SDAVF	Jugular foramen	Anterior hemispheric vein	Inferior petrosal sinus	Drainer occlusion	GR
					Lateral medullary vein
5/54/M	SAH	Anterior spinal artery	SPAVF	Jugular foramen–C1	Lateral medullary vein	Inferior petrosal sinus	Feeder occlusion	GR
6/56/F	SAH	Anterior spinal artery	SPAVF	Jugular foramen–C1	Lateral hemispheric vein	Inferior petrosal sinus	Feeder occlusion	GR
					Inferior vermian vein

SAH indicates subarachnoid hemorrhage; GR, good recovery; MD, moderately disabled; C, cervical; SDAVF, spinal dural arteriovenous fistula; SPAVF, spinal perimedullary arteriovenous fistula.