TABLE 1.

Reported cases of HFS associated with DVA

Authors & Year	Age (yrs)/Sex	Age at HFS Onset (yrs)	Lesion	Treatment
Mahran et al., 199112	58/F	60*	Venous angioma located in IAC; compression of rt CN VII & VIII	MVD–rt retrosigmoid craniectomy
Chen et al., 199613	53/F	51	Lt cerebellar hemisphere venous angioma; compression of lt CN VII	MVD–lt retromastoid craniectomy
Arita et al., 201220	38/F	21	Lt pontine cavernous angioma w/ venous angioma exiting ventrally to CN VII in prepontine cistern (noncompressive)	Botulinum toxin (unsatisfactory); lt retromastoid craniotomy, but no evidence of compression
Chiaramonte et al., 201319	59/M	59	Lt cerebellar DVA; compression of lt CN VII	Carbamazepine 600 mg/day
Rizek et al., 201618	32/F	5	Lt pontine DVA; compression of lt CN VII at REZ	Botulinum toxin preferred by patient over surgery
Grigoryan et al., 202014	30/F	18	Lt cerebellar DVA; compression of lt CN VII at REZ	MVD–lt retromastoid craniotomy, 2 previous at MVDs age 26 & 27
Present case	64/F	56	Rt pontine DVA; deformation of rt CN VII at REZ	MVD–rt retromastoid craniectomy

CN = cranial nerve; IAC = internal auditory canal; REZ = root exit zone.

^*DVA was discovered at age 58, and the patient subsequently developed HFS at age 60.