Variant PTA Terminating in Cerebellar Artery, Associated with Multiple Aneurysms

Table 1

Saltzman classification of persistent trigeminal artery.

Saltzman type	Termination site	Pcom
I	Basilar artery between the SCA and the AICA	Hypoplasia
II	Basilar artery above the origin of the SCA	Patent
IIIa	Directly the SCA	Patent
IIIb	Directly the AICA	Patent
IIIc	Directly the PICA	Patent

Pcom, posterior communicating artery; SCA, superior cerebellar artery; AICA, anterior inferior cerebellar artery; and PICA, posterior inferior cerebellar artery.