Bilateral and symmetric C1-C2 dumbbell ganglioneuromas associated with neurofibromatosis type 1: A case report

Table 1 Summary of previously reported cases with cervical bilateral dumbbell ganglioneuromas

Ref.	Age/Sex	Extension	Site	Treatment	NF-1	Presentation	Prognosis	Follow-up imaging
Hioki et al[12]	72/male	Intradural/extradural	C1-2	PR	-	Tetraparesis; sensory dysfunction	Symptom remission	No recurrence or increase after 2 yr
Kyoshima et al[3]	35/male	Intradural/extradural	C2-3	PR	+	Tetraparesis; respiratory dysfunction	Hypesthesia	None
Miyakoshi et al[2]	15/male	Extradural	C1-2; C3-4	PR	+	Tetraparesis; sensory dysfunction	Symptom remission	No recurrence or increase after 2 yr
Ugarriza et al[1]	53/male	Extradural	C2	TR	-	Tetraparesis; respiratory dysfunction; sensory dysfunction	Tetraparesis	None
Ando Hioki et al[13]	20/male	Intradural/extradural	C1-2; C2-3; C3-4	PR	-	Tetraparesis; sensory dysfunction	Symptom remission	No recurrence or increase after 2 yr

PR: Partial resection; TR: Total resection.